CN203423049U - A transformer with good withstand voltage effect - Google Patents

Abstract

The utility model relates to a power technical field especially relates to a withstand voltage respond well transformer, including the skeleton, the skeleton is provided with the magnetic core hole, is provided with the magnetic core in the magnetic core hole, the skeleton is provided with elementary wire winding groove and secondary wire winding groove, and elementary wire winding groove is provided with primary, and secondary wire winding groove is provided with secondary, elementary wire winding groove and secondary wire winding groove all are provided with the several pin, elementary wire winding groove still is provided with the first wrapping post that sets up perpendicularly with the pin, secondary wire winding groove still is provided with the second wrapping post that sets up perpendicularly with the pin, secondary wire winding groove's width T is greater than or equal to 6mm, the utility model discloses a improve transformer structure, the effectual problem of having solved the transformer existence, promote the withstand voltage effect of transformer, the practicality is strong.

Description

A transformer with good withstand voltage effect

technical field

The utility model relates to the technical field of power supplies, in particular to a transformer with good voltage withstand effect.

Background technique

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. According to the purpose, it can be divided into: distribution transformer, power transformer, fully sealed transformer, combined transformer, dry type transformer, oil immersed transformer, single phase transformer, electric furnace transformer, rectifier transformer, etc., which are often used in power supply devices such as power adapters.

The existing transformers have the following problems: 1. The skeleton in the transformer is directly wound on the pins, and then a Teflon bushing is added. If the Teflon bushing is not set, the process of dipping tin The paint film of the enameled wire will be damaged, resulting in a short circuit between the windings, and the voltage resistance effect is not ideal; 2. The insulation distance between the primary winding slot and the secondary winding slot of the transformer is small, and an insulating sleeve needs to be added. It increases the difficulty of operation and affects the production efficiency; 3. Due to the consideration of cost and material requirements, the safety distance between the primary winding groove and the secondary winding groove is often too small, which is easy to cause the defect of high voltage failure. In order to avoid this defect , when manufacturing the skeleton, it is often necessary to fly the secondary winding groove, but because the flying line process is complex and requires manual operation, it is very cumbersome in the actual processing process, which greatly reduces the production efficiency and does not Suitable for mass production.

Contents of the invention

The purpose of the utility model is to provide a transformer with a good voltage withstand effect for the deficiencies of the prior art. The utility model effectively solves the existing problems of the transformer by improving the structure of the transformer, improves the voltage withstand effect of the transformer, and has strong practicability .

In order to achieve the above purpose, a transformer with good voltage resistance effect of the utility model includes a skeleton, the skeleton is provided with a magnetic core hole, and a magnetic core is arranged in the magnetic core hole, and the skeleton is provided with a primary winding slot and a secondary winding slot. A primary winding slot, the primary winding slot is provided with a primary coil, the secondary winding slot is provided with a secondary coil, the primary winding slot and the secondary winding slot are both provided with several pins, the The primary winding slot is also provided with a first winding post perpendicular to the pin, and the secondary winding slot is also provided with a second winding post perpendicular to the pin. The width of the secondary winding slot is T is greater than or equal to 6mm.

Preferably, the cross-sections of the first winding post and the second winding post are circular, and the diameters of the first winding post and the second winding post are both 2mm, and the first winding post and the height of the second winding post are both 2mm.

Preferably, the width of the secondary winding groove is 8mm.

Preferably, the first winding post is integrally formed with the primary winding slot, and the second winding post is integrally formed with the secondary winding slot.

Preferably, the skeleton cover is provided with a protective cover, and the protective cover is provided with a buckle cover snap-fitted therewith.

The beneficial effects of the utility model: by adding the first winding post and the second winding post, the length of the enameled wire is extended, and the tin dipping process can be performed normally without adding a Teflon sleeve, and the design of the winding post In a cylindrical shape, the enameled wire will not be broken even if it is used for a long time, and the height range of the first winding post and the second winding post is limited, so that the distance between the primary winding slot and the secondary winding slot The insulation distance is kept at the best, no need to install insulating sleeves, the production process is simplified, and the production efficiency is improved; by limiting the width of the secondary winding groove, the pins on the secondary winding groove and the leads on the primary winding groove The distance between the pins is increased, and the wire drawn from the secondary winding slot first bypasses the second winding post, and then winds on the pin, so that the safe distance between the primary winding slot and the secondary winding slot reaches the standard , to avoid the defect of poor high voltage, in the actual production process, the process of removing the flying line improves the production efficiency.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a structural schematic view of the skeleton of the present invention from a perspective.

Fig. 3 is a structural schematic diagram of another perspective of the framework of the present invention.

Fig. 4 is a structural schematic diagram of another perspective of the framework of the present invention.

Fig. 5 is a schematic diagram of an exploded structure of the protective cover and the buckle cover of the present invention.

Reference signs include:

1—skeleton 11—magnetic core hole 12—primary winding slot

121—First winding post 13—Secondary winding slot 131—Second winding post

2—pin 3—protective sleeve 4—button cover.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 to 5, a transformer with good voltage withstand effect includes a skeleton 1, the skeleton is provided with a magnetic core hole 11, a magnetic core is arranged in the magnetic core hole 11, and the skeleton 1 is provided with a primary winding Wire groove 12 and secondary winding groove 13, described primary winding groove 12 is provided with primary coil, and described secondary winding groove 13 is provided with secondary coil, and described primary winding groove 12 and secondary winding groove 13 are provided with several pins 2, the primary winding slot 12 is also provided with a first winding post 121 perpendicular to the pin 2, and the secondary winding slot 13 is also provided with a first winding post 121 perpendicular to the pin 2. The second winding post 131, the width T of the secondary winding groove 13 is greater than or equal to 6 mm.

In this embodiment, by adding the first winding post 121 and the second winding post 131, the length of the enameled wire is extended, and the tin immersion process can be performed normally without adding a Teflon sleeve; by limiting the secondary winding groove 13 Width, so that the distance between the pin 2 on the secondary winding slot 13 and the pin on the primary winding slot 12 increases, and the wire pulled out from the secondary winding slot 13 first goes around the second winding post 131 , and then wound on the pin 2, so that the safety distance between the primary winding slot 12 and the secondary winding slot 13 reaches the standard, avoiding the defect of high voltage failure. In the actual production process, the process of removing the flying wire, Increased production efficiency.

In this embodiment, the cross-sections of the first winding post 121 and the second winding post 131 are both circular, and the diameters of the first winding post 121 and the second winding post 131 are both 2mm, so The heights of the first winding post 121 and the second winding post 131 are both 2mm, and the first winding post 121 and the second winding post 131 are all designed as cylindrical winding posts, and the cross-sectional diameter of the cylindrical winding posts is Too large, the length of the enameled wire is not enough, the paint film of the enameled wire will be damaged in the tin dipping process, causing a short circuit between the windings, the cross-sectional diameter of the cylindrical winding post is too small, and the restraint of the enameled wire on the cylindrical winding post during winding If the strength is not enough, it is easy to loose; the height of the cylindrical winding post is too high, and the insulation distance between the primary winding slot 12 and the secondary winding slot 13 is too small, which will cause the gap between the primary winding slot 12 and the secondary winding slot 13 The AC current induction between them is not accurate, so that the transformer cannot work normally, and the height of the cylindrical winding post is too small, so that the insulation distance between the primary winding slot 12 and the secondary winding slot 13 increases, and an insulating sleeve needs to be added , increasing the difficulty of the operation and affecting the production efficiency.

In this embodiment, the width of the secondary winding groove 13 is 8 mm, and if the safety distance between the primary winding groove 12 and the secondary winding groove 13 is less than 6 mm, there will be a phenomenon of poor high voltage of the outgoing line, which needs to be carried out. Flying wire processing, so by limiting the width of the secondary winding groove 13, the safety distance between the primary winding groove 12 and the secondary winding groove 13 is not less than 6mm, avoiding the defect of high voltage failure, in the actual production process In the process, the process of removing the flying line improves the production efficiency.

In this embodiment, the first winding post 121 is integrally formed with the primary winding slot 12 , and the second winding post 131 is integrally formed with the secondary winding slot 13 , which reduces the materials for making the transformer and saves cost.

In this embodiment, the framework 1 is provided with a protective cover 3, and the protective cover 3 is provided with a button cover 4 that is fastened and connected with it. The protective cover 3 and the button cover 4 insulate the primary coil and the secondary coil from the outside. Reduce the use of insulating materials and save costs.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (5)

1. a withstand voltage respond well transformer, comprise skeleton (1), described skeleton is provided with magnetic core hole (11), magnetic core hole is provided with magnetic core in (11), described skeleton (1) is provided with elementary winding slot (12) and secondary rolling thread groove (13), described elementary winding slot (12) is provided with primary coil, described secondary rolling thread groove (13) is provided with secondary coil, it is characterized in that: described elementary winding slot (12) and secondary rolling thread groove (13) are provided with several pins (2), described elementary winding slot (12) is also provided with and vertically disposed the first wrapping post of pin (2) (121), described secondary rolling thread groove (13) is also provided with and vertically disposed the second wrapping post of pin (2) (131), the width T of described secondary rolling thread groove (13) is more than or equal to 6mm.

2. a kind of withstand voltage respond well transformer according to claim 1, it is characterized in that: the cross section of described the first wrapping post (121) and the second wrapping post (131) is circle, the diameter of described the first wrapping post (121) and the second wrapping post (131) is 2mm, and the height of described the first wrapping post (121) and the second wrapping post (131) is 2mm.

3. a kind of withstand voltage respond well transformer according to claim 1, is characterized in that: the width of described secondary rolling thread groove (13) is 8mm.

4. a kind of withstand voltage respond well transformer according to claim 1, is characterized in that: described the first wrapping post (121) is one-body molded with elementary winding slot (12), and described the second wrapping post (131) is one-body molded with secondary rolling thread groove (13).

5. a kind of withstand voltage respond well transformer according to claim 1, is characterized in that: described skeleton (1) is arranged with protective sleeve (3), and described protective sleeve (3) is provided with the buckle closure (4) being fastened and connected with it.

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