TWI474347B - To avoid wire insulation deterioration of the frame - Google Patents

Description

Wire rack to avoid deterioration of wire insulation

The present invention relates to a wire frame, and more particularly to a wire frame that avoids insulation degradation due to an excessively small winding wire angle.

Looking at the safety restrictions of power supply design today, the transformer is a major project of safety inspection. It mainly judges the degree of insulation between the windings or the windings of the transformers when applying the working voltage to the transformer during the energization process. And further define whether the structure of the transformer meets the safety restrictions, and the IE 60950 safety regulations announced by the International Electrotechnical Commission (IEC) further divide the insulation degree of the transformer into five grades, such as operational insulation, basic insulation, double insulation, and auxiliary. Insulation and reinforced insulation.

On the other hand, in order to ensure that the designed transformer meets the above-mentioned safety conditions, it is necessary to achieve a small and lightweight design. Many operators are gradually using insulated wire to replace the conventional enamelled copper wire. The so-called insulated wire has better insulation properties, can also produce a higher degree of insulation, and has better withstand voltage characteristics. Thereby, the transformer is designed without the need to estimate the thickness required for the insulating spacer disposed between the coils in advance. However, the insulated wire cannot be bent at a small angle, that is, the bending of the near-folded or right-angled corner, because the insulating layer layered by the insulated wire cannot withstand such a small angle of bending. And it is easy to have cracks, which reduces the degree of insulation that can be provided. Furthermore, in view of the current wireframes, such as the Republic of China Announcement Nos. M427655 and M374139, the more specific structure is shown in Figure 1. The conventional one-wire frame 5 is bent at a winding of 6 turns. A corner 61 of less than 90 degrees or close to 90 degrees can be completed with a pin 51 on the bobbin 5 However, it can be known from the above structure that even if the relevant manufacturer winds the transformer with an insulated wire, it is still necessary to bend the corner 61 which is less than 90 degrees or close to 90 degrees, resulting in insulation degradation of the insulated wire, and correspondingly The position of an insulating sleeve is set to reinforce the deteriorated insulation capacity, but the implementation of the insulating sleeve will make the transformer not small, light and thin, which obviously does not meet the design requirements.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a wire frame which avoids insulation degradation caused by a wire which is too small due to an out-of-line angle.

In order to achieve the above object, the present invention provides a wire rack which avoids deterioration of wire insulation, and the wire frame includes a winding portion and an outlet portion extending to one side of the winding portion. The winding portion is provided with at least one coil winding, and each of the outlet portions is provided with a plurality of pins on the other side of the winding portion opposite to the winding portion, and the winding portion and the pin are defined as an axial direction. And a plurality of first steering columns and at least one second steering column disposed transversely to the axial direction at the two outlets, and two adjacent first steering columns are defined by two adjacent first steering columns a separation section between the columns, the second steering column is disposed on a side of the outlet portion where the pins are disposed and disposed in the separation section, so that the end of the coil winding passes through the first steering column and the second steering One of the columns has a bend angle greater than 90 degrees and is attached to the pin.

In one embodiment, the coil winding is wound from an insulated wire.

In one embodiment, the outlet portion includes a lead slope that connects the winding portion and has a predetermined angle with the axial direction.

In an embodiment, the angle of the preset angle is greater than 20 degrees and less than or equal to 45 degrees.

In an embodiment, the outlet portion has a first steering corresponding to The other side of the column and the second steering column is a core supporting surface provided with an iron core.

The structure of the present invention has the following features as compared with the conventional wire rack: the first steering column and the second steering column are disposed in the outlet portion, and the end of the winding passes the first steering The bending angle of more than 90 degrees is generated after the column and the second steering column to prevent cracking of the insulating layer covered by the circumference of the wire and the occurrence of insulation degradation.

1‧‧‧Winding Department

2, 2a‧‧‧ outlet department

21‧‧‧First steering column

22‧‧‧Second steering column

23‧‧‧ pins

24‧‧‧ lead bevel

25‧‧‧iron core support surface

3‧‧‧ coil winding

31‧‧‧ winding end

4‧‧‧ wiring department

5‧‧‧Wire rack

51‧‧‧ pins

6‧‧‧Winding

61‧‧‧ corner

A1‧‧‧Axial

A2, A3‧‧‧ horizontal

C1‧‧‧Bend angle

C2‧‧‧Preset angle

D1‧‧‧ separation interval

Figure 1. Schematic diagram of the implementation of the conventional wire frame.

Figure 2 is a bottom plan view of a first embodiment of the wire frame of the present invention to avoid deterioration of wire insulation.

Figure 3 is a side elevational view of the first embodiment of the wire frame of the present invention to avoid deterioration of wire insulation.

Figure 4 is a bottom plan view of a second embodiment of the wire frame of the present invention to avoid deterioration of wire insulation.

The detailed description and technical contents of the present invention will now be described with reference to the following drawings: In order to specifically describe the implementation structure of the wire frame in which the present invention avoids deterioration of wire insulation, the present invention mainly focuses on the bottom view and the side view of the wire frame. For example. Referring to FIG. 2 and FIG. 3 , the wire rack of the present invention mainly comprises a winding portion 1 and at least one outlet portion 2 extending on one side of the winding portion 1 . The winding portion 1 can be wound around at least one coil winding 3, and the coil winding 3 can be wound by an insulated wire. The outlet portion 2 is provided with a plurality of pins 23 on the other side of the winding portion 1, and further defines the winding portion 1 and the pin 23 as an axial direction A1, and is opposite to the outlet portion 2 The axial direction A1 is a plurality of first steering columns 21 disposed at two horizontal intervals A2 and A3, and at least one second steering column 22. More specifically, the lateral A2 and A3 of the present invention are parallel, and the axial direction A1 Vertically, in this way, each of the first steering columns 21 is disposed along the lateral direction A2, and each of the first steering columns 21 is spaced along the lateral direction A3. And the two adjacent first steering columns 21 define a separation interval D1 between the first steering columns 21, and the second steering column 22 is disposed on the outlet portion 2 and is provided with the pins. One side of 23 is set and should be separated by interval D1. In other words, each of the first steering column 21 and each of the second steering columns 22 are arranged in a staggered manner. According to this, while the winding of the coil winding 3 is completed, a winding end 31 of the coil winding 3 extends toward the outlet portion 2, and after passing through the first steering column 21 and the second steering column 22, a larger than A 90 degree bend angle C1 is attached to the pin 23. In this way, since the guiding of the first steering column 21 and the second steering column 22 causes the winding end 31 to be turned along the circumference of the second steering column 22 via the first steering column 21, the pin can be connected to the pin. At 23, the end 31 of the coil winding 3 is formed with the bending angle C1, and the so-called bending angle C1 is the angle of the winding end 31 with respect to the pin 23. The bending angle C1 at a large angle can specifically avoid the problem that the wire is deteriorated by cracking of the coated insulating layer due to excessive bending. Furthermore, the outlet portion 2 of the present invention can be further applied to one end of a transformer winding primary coil. In addition, the present invention corresponds to the outlet portion 2 corresponding to the first steering column 21 and the second steering column 22 The side has a core receiving surface 25 provided with a core (not shown).

Referring to FIG. 3, further, the outlet portion 2 of the present invention further has a lead inclined surface 24 connecting the winding portion 1 and having a predetermined angle C2 with the axial direction A1, and the intention of providing the lead inclined surface 24 is provided. In the process of winding the coil winding 3 to the outlet portion 2, it is still possible to generate a bending angle of approximately 90 degrees, resulting in insulation degradation of the wire, and the lead bevel 24 can make the winding end 31 The wire exit portion 2 is extended by a relatively smooth arc, thereby solving the above problem. More specifically, the predetermined angle referred to in the present invention may be greater than 20 degrees, and further may be greater than 20 degrees and less than or equal to 45 degrees.

Furthermore, in the embodiment of the present invention, the wire frame has only a single outlet portion 2, and the other portion of the winding portion 1 opposite to the outlet portion 2 is provided with a connection portion 4, and The connection portion 4 is substantially the same as the outlet end of the general transformer wire frame (meaning that the position is provided with a plurality of gussets), but the embodiment of the present invention is not limited thereto, and the winding portion 1 is An outlet portion 2, 2a may be respectively disposed on both sides, and the outlet portions 2, 2a may be respectively used for the primary winding and the secondary winding outlet of the transformer, as shown in FIG.

In summary, the wire frame of the present invention for avoiding deterioration of wire insulation is mainly composed of a winding portion and at least one outlet portion. The winding portion is provided with at least one coil winding, the outlet portion extends on one side of the winding portion, and a plurality of pins are disposed on the other side of the winding portion, and the winding portion and the pin are defined An at least one first steering column and at least one second steering column that are axially disposed on the outlet portion and disposed at two intervals in the axial direction, so that the end of the coil winding passes through the first steering column and the second One of the steering columns has a bend angle greater than 90 degrees and is coupled to the pin. Thereby, the problem that the bending angle of the conventional outlet is excessively large is excessive, and the deterioration of the insulating material is likely to occur. Therefore, the present invention is highly progressive and conforms to the requirements of the invention patent application, and the application is filed according to law, and the praying office grants the patent as soon as possible.

1‧‧‧Winding Department

2‧‧‧Outline Department

21‧‧‧First steering column

22‧‧‧Second steering column

23‧‧‧ pins

24‧‧‧ lead bevel

3‧‧‧ coil winding

31‧‧‧ winding end

4‧‧‧ wiring department

A1‧‧‧Axial

A2, A3‧‧‧ horizontal

C1‧‧‧Bend angle

D1‧‧‧ separation interval

Claims (5)

A wire rack for avoiding deterioration of wire insulation includes: a winding portion for winding at least one coil winding; at least one wire portion extending to a side of the winding portion, the winding portion being opposite to the winding portion a plurality of pins are disposed on the other side of the portion, and the plurality of first steering columns and at least one of the plurality of pins are defined to be axially disposed on the outlet portion at two intervals with respect to the axial direction a steering column, and a partitioning section between the two first steering columns is defined by two adjacent steering columns, and the second steering column is disposed at the outlet portion and is provided with one of the pins The side is disposed in the separation interval such that the end of the coil winding passes through one of the first steering column and the second steering column and the bending angle is greater than 90 degrees and is connected to the pin. A wire rack for avoiding deterioration of wire insulation as recited in claim 1, wherein the coil winding is wound by an insulated wire. The wire rack for avoiding deterioration of the wire insulation as described in claim 1, wherein the wire outlet portion includes a lead inclined surface connecting the wire winding portion and having a predetermined angle with the axial direction. A wire rack for avoiding deterioration of wire insulation as described in claim 3, wherein the angle of the predetermined angle is greater than 20 degrees and less than or equal to 45 degrees. The wire rack for avoiding deterioration of the wire insulation as described in claim 1 , wherein the outlet portion has a side disposed on the other side corresponding to the first steering column and the second steering column for providing a core Iron core support surface.