KR200418774Y1 - Transformer - Google Patents

Abstract

The present invention has an inner surface (11a) of the upper and lower strait that is increasingly separated from the lower part of the core 1 to the upper part of the body 1 to accommodate the core 1, the breakdown that can appear on the upper part of the body 11 The phenomenon can be prevented in advance, and the two bobbins 10 are housed in the insulating case 40 and then molded and integrated with the epoxy resin 50 so that they can be simply fitted to the core 1 for assembly. It is possible to ensure the assemblability of the assembly by completing the above, and it is possible to realize the double insulation completely by the insulating case 40 and the epoxy resin 50, which is a device for a transformer that is particularly stable at high voltage. .

Description

Transformers {TRANSFORMER}

1 is a conceptual diagram for explaining the principle of a transformer.

Figure 2 is a perspective view of a transformer according to the present invention.

3a and 3b is an exploded perspective view showing the bobbin and the insulating case of the transformer according to the present invention.

Figure 4a is a perspective view from above of the bobbin of a transformer according to the present invention.

Figure 4b is a perspective view from below of the bobbin of a transformer according to the present invention.

Figure 4c is a perspective view of the bobbin of the transformer according to the present invention from the side.

5a and 5b is a comparative view for explaining a carry-over groove applied to the bobbin of the transformer according to the present invention.

Figure 6 is a front sectional view showing a bobbin of a transformer according to the present invention.

    ≡ * ≡ Explanation of symbols for the main parts of the drawing ≡ * ≡

C1: Primary Coil C2: Secondary Coil

10: bobbin 11: body

11a: inner 11b: protrusion

12: partition wall 13: carryover home

13a: ramp 13b: incision

14: interlayer winding area ST: stepped

15: cylindrical supporter 15a: bending groove

16: diaphragm 20: output cable

31: start terminal 32: end terminal

40: insulated case 41: inner square cylinder

42: outer square cylinder 43: separator

50: epoxy resin 60: connection cable

1: core

The present invention relates to a transformer, and more particularly, a body in which a core is fitted to have an inner surface of a light receiving strait that gradually increases from a lower part of a core to an upper part thereof, thereby preventing insulation breakdown that may appear at the upper part of the body. It is about a transformer.

In general, the neon tube is a tubular discharge tube that generates light by glow discharge of neon gas or argon gas. The thinner tube has higher power consumption and brighter brightness, and the more bent, the higher the power consumption and the number of electrodes. The more the power consumption is, the more the power consumption is, and the load condition is not constant.

In general, a filament called ELECTRODE or CATHODE is coated with a special coating, and when the lamp is turned on, the filament is heated and continuously emits high heat to illuminate the light. In this case, the fluorescent lamp is called a hot cathode (HOT CATHODE), while when turned on is a cold cathode because it operates at a lower temperature than the filament electrode of the fluorescent lamp, this cold cathode lamp also uses a transformer of a kind of transformer.

1 is a conceptual diagram for explaining the principle of a leakage transformer which is one type of transformer.

As shown in FIG. 1, when a current flows in the primary coil, the transformer induces a voltage proportional to the turns ratio in the secondary coil. However, when the power consumed in the secondary coil can be sufficiently consumed, the transformer generates maximum efficiency. In this case, the magnetic force lines induced in the primary coil flow through the leakage core so that the secondary coil flows current only as necessary for the load (neon tube or cold cathode lamp).

At this time, when the load is reduced, the leakage core is lost except for the power required for the load. When the analysis is performed again, the input current becomes the same regardless of whether the load is large or small, and this is called leakage current.

The present invention aims to improve the structure of a transformer such as a leakage transformer.

It is an object of the present invention to provide a transformer in which the body receiving the core has an inner surface of the upper and lower straits that gradually move away from the lower part of the core to the upper part, thereby preventing insulation breakdown that may appear on the upper part of the body. have.

In addition, the present invention provides a transformer in which cores and inner surfaces of the body can be uniformly coupled to each other while maintaining an even distance from each other by further including protrusions that become thicker from the lower side to the upper side of the body.

In addition, the present invention provides a transformer that provides a partition wall in which the layer layer protrudes outwardly from the bottom to the top of the body to naturally secure the interlayer winding regions so that the winding of the secondary coil can be completed more quickly and accurately.

In addition, by providing a thickness of the body for each step of the winding layer between the step to provide a transformer that can be performed uniformly sequentially without slipping during the high-speed winding of the secondary coil.

In addition, the present invention provides a transformer that prevents insulation breakdown that may occur in the output cable by protruding a diaphragm that isolates the core and the output cable from each other.

In addition, two sets of bobbins are housed in an insulating case, molded with an epoxy resin and integrated to provide a transformer that can be completed by simply fitting the core.

The present invention for achieving the above object,

In a transformer for supplying an output cable by boosting a voltage induced from a primary coil to a high voltage by combining a bobbin and a core wound with a secondary coil,

The bobbin is a basic feature of the technical configuration that comprises a body of the upper and lower subsoil having an inner surface that gradually goes from the lower portion to the upper portion of the core.

Hereinafter, a preferred embodiment of a transformer according to the present invention will be described with reference to the drawings, and embodiments of the present invention may exist in a plurality, and through these embodiments, the objects, features, and advantages of the present invention are better understood. I can understand.

2 is a perspective view showing a transformer according to the present invention.

As shown in FIG. 2, the transformer according to the present invention may be provided to the output cable 20 while flowing a current through the primary coil C1 coupled to the core 1 so that a high voltage is induced in the secondary coil C2. It is designed to be able to, and is composed of a structure that is embedded with a filler (homica, tar or urethane foam, etc. widely used in the art as a room temperature curing type synthetic resin synthesized polyester and stone powder) in a housing not shown.

The core of the present invention is related to the bobbin 10 and the insulating case 40 of the secondary coil (C2) will be described in detail with respect to these configurations for convenience.

3A and 3B are exploded perspective views showing the bobbin 10 and the insulating case 40 of the transformer according to the present invention, and FIGS. 4A to 4C are respectively viewed from different directions of the bobbin 10 of the transformer according to the present invention. Perspective view.

The bobbin 10, which is a core configuration of the transformer according to the present invention, has a basic configuration in which a body 11 which receives the core 1 is fitted as shown in FIGS. 3A to 4C, and the body 11 has a core. It is made in the shape of the upper and lower subcontracts which has the inner surface 11a which becomes increasingly distance from the lower part to the upper part of (1).

When the inner surface 11a of the body 11, which is the bobbin 10, is formed in a shape of a light beam narrowing toward the top from the bottom of the core 1, a high voltage of approximately 15,000 V is applied at the top of the body 11. Even if it is induced, it is possible to prevent the dielectric breakdown phenomenon in this part, that is, the dielectric breakdown phenomenon (high voltage splashing) from the secondary coil C2 toward the core 1 in advance.

In addition, when the protrusion 11b further thickens from the lower portion of the inner surface 11a of the body 11 to the upper portion, the core 1 and the inner surface 11a of the body 11 may be uniformly spaced apart from each other. It can be combined so that the breakdown phenomenon can be more completely overcome.

Preferably, the bobbin 10, which is a core component of the transformer according to the present invention, further includes partition walls 12 protruding outwardly from the bottom to the top of the body 11 to provide the interlayer winding regions 14. The secondary wall C2 wound around the interlayer winding region 14 is carried over the partition wall 12 to cut the partition wall 12 so as to be wound around the adjacent interlayer winding region 14. It includes a carried forward groove (13).

Typically, the bobbin 10 completes the winding process while alternately winding and covering the secondary coil C2 and the insulating paper (not shown) on the outer circumference of the body 11. Not only does it take too long, but if the location of the insulation paper is not correct, it leads to a defective transformer, which inevitably reduces productivity.

However, in the present invention, by providing a partition wall 12 in which the layer layer protrudes outwardly from the lower part to the upper part of the body 11 so as to naturally secure the interlayer winding regions 14, the secondary material can be more quickly and accurately without requiring special insulation paper. The winding of the coil C2 can be completed.

More preferably, the bobbin 10 of the transformer according to the present invention provides the thickness of the body 11 for each of the interlayer winding regions 14 in a stepped shape (ST) of the body 11 of the interlayer winding region 14. When the outer surface is laid in the horizontal direction, the horizontal state is maintained so that the winding of the secondary coil C2 can be sequentially and uniformly performed without slipping during the high-speed winding of the secondary coil C2, thereby preventing the winding failure of the secondary coil C2 in advance. do.

On the other hand, the bobbin 10 applied to the transformer according to the present invention is provided with a start terminal 31 to which the start end of the secondary coil C2 is connected to the lower part of the body 11, the upper part of the body 11 With the end terminal 32 to which the end of the car coil C2 and the output cable 20 are connected, the number of windings gradually increases as the voltage induced from the primary coil C1 goes from the lower part of the bobbin 10 to the upper part. It can be boosted naturally while passing through the secondary coil C2.

In addition, a high voltage of 15,000 V implemented in the output cable 20 bounces toward the core 1 by protruding the diaphragm 16 separating the core 1 and the output cable 20 from each other on the upper part of the body 11. Phenomenon, ie, dielectric breakdown, is prevented beforehand.

On the other hand, the transformer according to the present invention is to be able to assemble two sets of bobbins 10 having the structure as described above to the core (1), and also these two sets of bobbins 10 insulated case (40) ) And then molded into an epoxy resin 50 so as to be integrated.

Since two sets of bobbins 10 are stored in the insulating case 40 and then molded and integrated into the epoxy resin 50, the assembly can be completed simply by fitting them to the core 1. In addition, the insulation by the insulating case 40 and the epoxy resin 50 can be fully realized in a double, thereby achieving a particularly stable operation at high voltage.

More specifically, since the filler filled in the interior of the housing (not shown), also known as Homica, absorbs moisture, product failure or electric shock due to high voltage short induced in the secondary coil C2 when exposed to moisture for a long time, or Although it may cause a risk of fire, in the present invention, the secondary coils C2 are wound around two sets of bobbins 10 respectively and stored in the insulating case 40 and then molded with an epoxy resin 50 to insulate the insulating case ( 40) and the double insulation by the epoxy resin 50 can be ensured to exhibit a particularly stable operation at high voltage.

Preferably, the insulating case 40 has two sets of inner square cylinders 41 for receiving the core 1 while facing the inner surface 11a of the bobbin 10, and these two sets of inner squares. It consists of a structure including the outer square cylinder 42 which wraps the bobbin 10 of two sets respectively fitted in the cylinder 41 at once.

The secondary coil C2 is provided by allowing the inner square 11 of the bobbin 10 to face each other while the two inner square cylinders 41, which constitute the insulating case 40, directly fit the core 1. The high voltage induced from the epoxy resin 50 and the inner rectangular cylinder 41 can provide double insulation, and the epoxy resin in the state in which the two sets of bobbins 10 are accommodated in the outer rectangular cylinder 42. By filling the 50 so as to cure, the assemblability can also be assuredly ensured.

More preferably, the transformer according to the present invention may further include a separator 43 which protrudes further to the top of the outer square tube 42 to insulate the output cable 20.

The separator 43 is further provided on the upper side of the outer square tube 42 to prevent the high voltage of 15,000 V implemented in the output cable 20 from splashing to the outside of the housing, that is, the insulation breakdown. do.

Referring to the assembly process of the transformer according to the present invention made of the configuration as follows.

First, the start end of the secondary coil C2 is connected to the start terminal 31 of the bobbin 10, and then carried forward via the carry-over groove 13 of the lowest partition wall 12, so that the first interlayer winding area 14 ) Can be wound around the secondary coil (C2).

When the winding of the secondary coil C2 is completed in the first interlayer winding region 14, the secondary coil is carried back to the second interlayer winding region 14 by carrying it back through the carryover groove 13 of the neighboring partition wall 12. The winding of (C2) can be performed, and the winding of the last interlayer winding region 14 is completed in this order, and then the end of the secondary coil C2 is connected to the end terminal 32 of the uppermost partition wall 12. Let's do it.

Then, the core of the output cable 20 is exposed to the outside along the bent groove 15a while the output cable 20 is inserted into the cylindrical supporter 15 and then the core is firmly connected to the end terminal 32 (welding). )

Thereafter, the bobbin 10 wound around the secondary coil C2 is prepared in one pair, and the start terminals 31 are connected to each other as the connecting cable 60, and then stored in the insulating case 40, and the epoxy The resin 50 is filled to cure.

As such, the two sets of bobbins 10 having the secondary coils C2 wound on the insulation case 40 are integrally coupled to the core 1, and then the primary coils C1 are inserted and then inserted into the housing. Filling the filler will complete the assembly of the transformer.

The following describes the claims of the utility model registration dual application of the "transformer" of the same application with reference numerals so as to help the understanding of the non-described codes in the figures.

[Claim of Transformer of Double-Application for Utility Model Registration of Same Date]

[Claim 1]

In the transformer for supplying the output cable 20 by boosting the voltage induced from the primary coil C1 to a high voltage by combining the bobbin 10 wound around the secondary coil C2 and the core 1,

The bobbin 10 is

A body 11 which accepts the core 1;

Partition walls 12 protruding outwardly from the bottom to the top of the body 11 to provide interlayer winding regions 14;

The body 11 such that the secondary coil C2 wound in the interlayer winding region 14 carries over the partition wall 12 to start winding at an edge of the neighboring interlayer winding region 14. A transformer, characterized in that it comprises a carry-back groove (13) provided by cutting the partition wall (12) located at the corner portion of the).

[Claim 2]

The method of claim 1,

The carry forward 13 is

Protecting the ramp 13a from both sides according to the incision of the partition wall 12 while forming the ramp 13a so as to be gradually lowered toward the corner portion of the body 11 from the outside of the partition wall 12. A transformer comprising a structure comprising two sets of cut pieces 13b.

[Claim 3]

The method of claim 1,

A start terminal 31 formed in the lowest partition wall 12 among the partition walls 12 and connected to a start end of the secondary coil C2;

And an end terminal (32) formed on an uppermost partition wall (12) of the partition walls (12) to which an end of the secondary coil (C2) is connected.

[Claim 4]

The method of claim 3, wherein

And a cylindrical supporter (15) formed upright in the uppermost partition wall (12) to support the output cable (20) with a bent groove (15a) cut in succession up and down and in one direction.

As described above, the present invention allows the body 11 to receive the core 1 to have an inner surface 11a of the upper and lower straits that gradually move away from the lower part of the core 1 to the upper part so as to appear at the upper part of the body 11. There is an excellent effect to prevent possible breakdown of the insulation.

In addition, the core 11 and the inner surface 11a of the body 11 are uniformly spaced apart from each other by further including projections 11b that become thicker from the lower portion of the inner surface 11a toward the upper portion. By allowing them to be combined, there is an advantage to more completely overcome the breakdown phenomenon.

In addition, by providing a partition wall 12 in which the layer layer protrudes outward from the lower part to the upper part of the body 11 so as to naturally secure the interlayer winding regions 14, the secondary coil C2 can be more quickly and accurately without requiring special insulating paper. There is usefulness to complete winding of).

In addition, by providing the thickness of the body 11 for each of the interlayer winding region 14 in a step (ST) to maintain the horizontal state when laying the outer surface of the body 11 in the interlayer winding region 14 in the horizontal direction 2 There is an advantage in that the high-speed winding of the coil (C2) can be uniformly wound sequentially without slipping.

In addition, a high voltage of 15,000 V implemented in the output cable 20 bounces toward the core 1 by protruding the diaphragm 16 separating the core 1 and the output cable 20 from each other on the upper part of the body 11. Phenomenon, that is, there is an advantage that can prevent the breakdown phenomenon in advance.

In particular, the two bobbins 10 are housed in the insulating case 40 and then molded and integrated into the epoxy resin 50 so that the assembly can be completed simply by fitting them to the core 1. Can be surely ensured, and the insulation by the insulating case 40 and the epoxy resin 50 can be fully implemented in a double, there is a useful that is particularly stable at high voltage.

Then, the inner coil 11 of the bobbin 10 can face each other while the two inner square cylinders 41, which constitute the insulating case 40, directly insert the core 1 into the secondary coil ( In the state where the high voltage induced from C2) can provide double insulation by the epoxy resin 50 and the inner rectangular cylinder 41, and the two bobbins 10 are accommodated in the outer rectangular cylinder 42. By filling the epoxy resin 50 to be cured, the assemblability is also greatly improved.

In addition, the separator 43 is further provided on the upper side of the outer rectangular tube 42 to prevent the high voltage of 15,000 V implemented in the output cable 20 from splashing to the outside of the housing, that is, the dielectric breakdown phenomenon. It has an effect.

As can be seen from the above object, configuration, and effect of the present invention, the present invention has an inner surface 11a of the upper and lower straits where the body 11 which fits the core 1 is gradually moved from the lower part of the core 1 to the upper part. It is the biggest core technology to have the same, and other changeable configurations can be understood as the number of various cases, the present invention includes all the number of such changeable cases, and the interpretation of the utility model registration claims is also equivalent. do.

Claims (9)

In the transformer for supplying the output cable 20 by boosting the voltage induced from the primary coil C1 to a high voltage by combining the bobbin 10 wound around the secondary coil C2 and the core 1, The bobbin (10) is a transformer characterized in that it comprises a body (11) of the upper and lower strait having an inner surface (11a) that gradually increases from the bottom to the top of the core (1). The method of claim 1, A transformer, characterized in that it comprises a projection (11b) that becomes thicker gradually from the lower portion to the upper portion of the inner surface (11a) of the body (11). The method of claim 1, Partition walls 12 protruding outwardly from the bottom to the top of the body 11 to provide interlayer winding regions 14; The partition wall 12 is cut so that the secondary coil C2 wound in the interlayer winding region 14 is carried over the partition wall 12 to be wound in the neighboring interlayer winding region 14. Transformer characterized in that it comprises a carry-over groove 13 provided. The method of claim 3, wherein A transformer, characterized in that for providing the thickness of the body (11) for each of the interlayer winding region (14) in a step (ST) so that the secondary coil (C2) is sequentially uniformly wound. The method of claim 1, A start terminal 31 formed below the body 11 and connected to a start end of the secondary coil C2; And an end terminal (32) formed at an upper portion of the body (11) to which an end of the secondary coil (C2) and the output cable (20) are connected. The method of claim 5, wherein And a diaphragm (16) protruding above the body (11) to isolate the core (1) and the output cable (20) from each other. The method according to any one of claims 1 to 6, The bobbin 10 is composed of two in one set is assembled to the core (1), The two sets of bobbins (10) are stored in an insulating case (40) and then molded with an epoxy resin (50) to be integrated. The method of claim 7, wherein The insulating case 40 is Two sets of inner square cylinders 41 for receiving the core 1 while facing the inner surface 11a of the bobbin 10, A transformer, characterized in that it comprises an outer square tube (42) surrounding the two sets of bobbins (10) inserted into the two sets of inner square cylinders (41) at a time. The method of claim 8, And an isolation plate (43) for further protruding above the outer rectangular tube (42) to ensure insulation of the output cable (20).

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