Environmental protection transformer with lost wax method potting epoxy resin and preparation method thereof

A technology of epoxy resin and epoxy resin layer is applied in the direction of inductor/transformer/magnet manufacturing, transformer/inductor shell, transformer/inductor parts, etc., which can solve the problem of huge labor cost, unfavorable transformer installation, and easy Problems such as deformation occur, to achieve the effect of saving development costs, saving material costs, and avoiding pollution

Active Publication Date: 2017-12-12
珠海市康定电子股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the output power of the electronic transformer is different, its external dimensions are also different, so it is necessary to prepare packaging shell molds of various specifications in advance to process the special shell for potting, and the cost is high
Epoxy resin generally requires manual operation of machine equipment to complete the potting. Affected by factors such as machine vibration, the transformer pins and the surface of the shell are easily polluted by epoxy resin, which is likely to cause poor appearance and requires more labor to clean the appearance. , requires a huge labor cost
In addition, the casing of electronic transformers is mostly processed from thermoplastic materials such as PBT, which is easily deformed due to the influence of temperature and other factors during processing, which is not conducive to the installation of the transformer, and there is a hidden danger that the casing will fall off from the transformer body; In addition, the casing used in traditional transformers is made of PBT. As a non-degradable material, PBT is difficult to recycle after the product life cycle is over, which will cause environmental pollution.

Method used

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  • Environmental protection transformer with lost wax method potting epoxy resin and preparation method thereof
  • Environmental protection transformer with lost wax method potting epoxy resin and preparation method thereof
  • Environmental protection transformer with lost wax method potting epoxy resin and preparation method thereof

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Embodiment Construction

[0024] Such as figure 1 and figure 2 As shown, in the present invention, the environmental protection transformer includes a transformer body, and the transformer body is composed of a skeleton 1, a finished coil wound on the skeleton 1 and a silicon steel sheet 2 sleeved on the skeleton 1. Several connection pins 3 are arranged on the upper end surface of the frame 1 . A layer of integrally formed epoxy resin layer 4 is covered around the entire periphery of the transformer body, and above the skeleton 1 , the connection pins 3 are exposed on the epoxy resin layer 4 . The epoxy resin layer 4 is covered on the periphery of the transformer body by potting.

[0025] Such as image 3 and Figure 4 Shown, when preparing above-mentioned transformer, its steps are as follows:

[0026] a. Prefabricated wax mold: Add fluid high temperature resistant paraffin into the transformer tray 5, and after solidification, set a mold cavity 7 matching the transformer body in the formed hig...

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Abstract

The invention discloses an environment-friendly transformer with a housing for potting epoxy resin employing a lost-wax process and a method for preparing the environment-friendly transformer; and the environment-friendly transformer is simple in structure, good in sealing effect and high in insulating protection capability and does not pollute the environment. The environment-friendly transformer comprises a transformer body, wherein the transformer body comprises a skeleton (1), a finished coil wound on the skeleton (1) and a silicon steel sheet (2) sleeving the skeleton (1); a plurality of connection pins (3) are arranged on the upper end surface of the skeleton (1); an integrally molded epoxy resin layer (4) coats the periphery of the overall transformer body; and the connection pins (3) are exposed on the epoxy resin layer (4) at the upper part of the skeleton (1). The preparation method comprises the following steps of (a) prefabricating a wax mold; (b) potting the epoxy resin; (c) putting the wax mold into the transformer body; and (d) removing wax and forming the transformer a demolding manner. The environment-friendly transformer can be used for the field of electronic devices.

Description

technical field [0001] The invention relates to the field of electronic devices, in particular to an environment-friendly transformer potted with epoxy resin by a lost-wax method, and a method for preparing the environment-friendly transformer by using the lost-wax method. Background technique [0002] In recent years, the electronics industry has continued to grow at a high speed, which has driven the strong development of the electronic components industry represented by electronic transformers; at the same time, the rapid development of the electronic information technology industry at home and abroad has also brought a broad market to many electronic components manufacturers. prospect. For the electronic transformer industry, the huge market not only brings a broad space for development, but also brings opportunities to promote the continuous improvement of transformer manufacturers themselves. Only by actively responding to market demand, improving product quality, impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/02H01F41/00B29C39/18B29C39/26B29C33/38B29K63/00
CPCB29C33/38B29C39/18B29C39/26B29K2063/00H01F27/022H01F41/005
Inventor 邓志谊李伟
Owner 珠海市康定电子股份有限公司
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