KR920005231Y1 - Bobbin for ne-high volt-transformer - Google Patents

Abstract

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Description

Bobbins for neon transformer secondary high voltage winding

1 is a longitudinal cross-sectional view of a neon trance.

Figure 2 is an exploded perspective view showing a partially cut bobbin of the present invention.

3 is a plan view of the bobbin of the present invention.

4 is a side view of the bobbin case removed.

5 is a partially enlarged perspective view showing a state in which a connecting wire, one end of which is connected to the beginning of the coil, is connected to the output line;

6 is a partially enlarged perspective view of a second connecting portion showing a state in which the final portion of the coil and the output line are connected.

7 is a partial perspective view of a state in which a coil is wound between each slit and passed between the next slits.

* Explanation of symbols for main parts of the drawings

1: neon trance 5: secondary side coil

6: bobbin 7: case

8: first connection part 9: second connection part

10,10: output line 61: slits

62: V-groove 71,72: outer wall

73: groove portion 74: protective groove

81: hole 82: fixed wall

83: connecting pin 84: passage

85: fixed tube 86: inner wall

91: rod 92: pin

93: base 94: inner wall

95: passage 96: fixed tube

The present invention relates to the structure of the secondary side high-voltage winding bobbin used in the high-voltage transformer for neon, the winding coil is divided into a plurality of slits to be wound and the upper and lower outer periphery of the bobbin is larger than the outer circumference of the center portion The distance between the E-type core and the E-type core prevents the corona discharge due to the increase of the potential difference, and the winding start and end of the coil are easily connected to the output line connected to the terminal of the neon tube. The insulating material is easily filled through, and the bobbin and the case is coupled to each case is formed in the concave-convex shape is to relate to the bobbin for the neon trans secondary high-pressure winding bobbin to prevent the corona discharge by the distance between the winding and the E-type core.

Conventional windings of secondary coils for high voltage transformers for neon are wound by repeating the process of winding the coil on the first layer and then insulating it with interlayer insulating paper wider than the width of the winding and again winding the coil of the second layer on the interlayer insulating paper. When the secondary coils are wound in this way, the width of the interlayer insulating paper is larger than the width of the wound coil to maintain the creepage distance (between the coil and the core). There is a problem in that the appearance is unnecessarily large, and second, the width of the wound coil is wide, the voltage induced between the layers is large. third ; Since the interlayer distribution capacity c is large, the amount of charge Q accumulated in the interlayer distribution capacity is also large (charge amount Q) = distribution capacity c x V (interlayer voltage). Therefore, the characteristics such as accumulation between the windings or the layers of the windings are reduced, and the lifespan is reduced, and the interlayer insulating paper must be continuously inserted during the winding. There was a drawback that occurred and that there was a risk of damaging the coil during insulation paper cutting after the winding was completed.

The present invention has been devised to solve the conventional drawbacks and will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 1, the neon transformer 1 has a primary coil 3, a separation core 4, and a second coil fitted into an E-shaped core 2, 2 'and a lower E-shaped core 2 separated up and down. The bobbin 6 and the case 7 winding the side coil 5 are coupled to the upper E-type core 2.

The secondary coil 5 is wound between the slits 61 formed at equal intervals on the outer circumference of the bobbin 6, but is inserted into the coil 5 and the core insertion groove 65 wound on the upper and lower sides where high voltage is generated. In order to prevent the corona discharge by separating the E-shaped cores 2 and 2 ', the outer periphery between the slits 61 is increased stepwise to form a step A, and the coil 5 The starting line of is connected to the connecting pin 11 fixed to one side of the bobbin lower end and the coil wound between the slits 61 is cut into slits 61 alternately diagonally as shown in FIG. The V-groove 62 is then wound and wound in the next step.

On the other hand, one end of the connecting wire 12 is connected to the connection pin 11 to which the start line of the coil 5 is connected, and the other end of the hole 81 of the first contact portion 8 formed on the upper side of the bobbin 6. And the final line of the coil 5 wound around the output line 10 is drawn out to the second connecting portion 9 formed at a position corresponding to the first connecting portion 8, and the end thereof is output line 10 '. ) Is connected to the U-shaped pin 92 connected.

On the other hand, as shown in FIG. 5, the first connecting portion 8 includes a fixing wall 82 which causes the end portion to fail in a state where the connecting wire 12 is penetrated and the connecting wire 12 is bent at a right angle. The connecting pin 83 wound around the core wire of the connecting wire 12, and protrudes on one side of the fixed wall 82, connects to the inner wall 86, and the output wire 10 is fitted therein so that the core wire is drawn out. The outer side of the fixing tube 85 and the inner wall 86 and the fixing tube 85 is formed to have a groove 87 is fitted into the projection 711 of the outer wall 71 protruding to the upper case (7).

In addition, the second connecting portion 9 protrudes a rod 91 which prevents disconnection of the final line of the coiled coil 5 as shown in FIG. 6, and the end wire of the coil 5 and the core wire of the output line 10 '. To connect Fixing tube 96 and inner wall 94 connected to the supporting part 93 and inner wall 94 having the mold pin 92 coupled thereto, and having a passage 95 formed therein so that the output line 10 ′ is inserted and the core wire is drawn out. And a groove 97 into which the protrusion 721 of the outer wall 72 protruding above the case 7 is fitted to the outside of the fixed tube 96.

On the other hand, the bobbin 6 is coupled to the case 7 at one side of the first connecting portion 8 and the second connecting portion 9 formed on the upper side of the bobbin 6, and an injection hole 13 for filling an insulating material in the space therein. 13 'is formed to pass through and guide ribs 66 protrude from all sides of the core insertion groove 65 penetrated at the center to support the E-shaped cores 2 and 2', and the bobbin 6 Ribs 63, 64 are formed on the upper and lower plates of the upper and lower plates so that the E-shaped core 2 'is in contact with the ribs 63, and the ribs 64 are coupled to the grooves 73 formed inside the case 7. The creepage distance is lengthened and the protective groove 74 is formed while protruding to the outside by connecting with the outer wall 72 of the case 7 so as to assemble the bobbin 6 and the case 7 and the starting line of the coil 5. The connection wire 12 connected to the core wire of the output line 10 is inserted along the protective groove 74 to prevent the defect.

On the other hand, after the bobbin 6 and the case 7 are assembled, an insulating material is applied to the flange 75 of the upper portion of the case 7 as shown in FIG. 1, and the first connection portion 8 and the second connection portion ( Insulation material is also filled in the space of 9) to prevent high voltage from flowing out.

In addition, a small triangular protrusion protrudes from the inner diameter of the fixing tube 85 of the first connecting portion 8, the inner diameter of the fixing tube 96 of the second connecting portion 9, and the inner side of the fixing wall 82 so that each output line ( 10) It securely holds the cover of the 10 'and the connecting wire 12.

The present invention constituted as described above is produced by injection molding in which the bobbin 6 and the case 7 are assembled. The secondary coil 5 is wound around the bobbin 6 and connected to the output lines 10 and 10 '. The method and assembly process are as follows.

Couple the core insertion groove 65 of the bobbin 6 to the coil winding frame (not shown), and then connect the starting line of the secondary coil 5 to the wiring pin 11 as shown in FIG. The coil 5 is wound between the grooves 61. When the winding of the coil 5 is completed, the final line is drawn out to the upper portion of the bobbin 6 as shown in FIG. 93) hang the end line after protruding from the rod 91 To the " type pin 92.

In addition, the secondary coil (5) is wound around the bobbin (6) and the two side lines are connected to the connecting pin (11) One end of the connecting wire 12 is connected to the connecting pin 11 in the state of being connected to the mold pin 92 and soldered together with the starting line of the coil 5, and the other end of the connecting wire 12 is connected to the first connecting part 8. After passing through the hole 81 of the bent at a right angle, the end is fixedly pushed into the fixing wall 82, and the core wire of the connecting wire 12 is wound around the connecting pin 83, and then each first connecting portion 8 ) And the output lines 10 and 10 'are fixed to the fixing pipes 85 and 96 of the second connection portion 9 and the cores of the fixed output lines 10 and 10'. The connecting wire 12 wound on the connecting pin 83 After connecting to the mold pin 92 and soldering, after the soldering work is finished by applying artificial force to the rod 91 of the second connecting portion (9) to break the excess line to prevent disconnection to the final line of the coil (5) Get it.

On the other hand, the secondary coil (5) is wound around the bobbin (6), and both ends of the wire are connected to the output line (10, 10 ') and the connection work is completed as soon as possible to combine the bobbin (6) and the case (7) When the coupling is completed, the ribs 64 on the lower plate of the bobbin 6 are fitted into the grooves 73 of the case 7 as shown in FIGS. 7 and 3, and protrude upward from the case 7. The projections 711 and 721 of each of the outer walls 71 and 72 are also held in the grooves 87 and 97 formed in the first connecting portion 8 and the second connecting portion 9.

On the other hand, when the coupling of the bobbin 6 and the case 7 is completed, the insulating material is filled through the injection holes 13 and 13 ′ in the upper plate of the bobbin 6 to fill the empty space in the case 7. In addition, the insulating material is applied to the tip of the flange 75 of the first connection part 8, the second connection part 9, and the case 7 so that each connection part and the gap are not exposed, thereby preventing the high pressure from flowing to the outside.

Therefore, the present invention as described above can easily connect the both ends of the coil wound by the first connecting portion and the second connecting portion formed on the bobbin and the output line connected to the neon tube and are firmly supported and the creepage distance between the coil and the core. When the projections and grooves are formed on the bobbin and the case so as to be remotely and firmly coupled to prevent corona discharge, the corbin discharge is filled or applied as an insulating material after the bobbin and the case are combined. It prevents flow to the outside, and by making the upper and lower outer circumference formed with plural slits larger than the outer circumference of the center part, it keeps the distance between the winding and the core and prevents corona discharge even when high voltage is generated. Prolonged effect and easy to manufacture and assemble, mass production It has a possible advantage.

Claims (4)

Bobbins wound around primary coil 3, separation core 4, and secondary coil 5 sandwiched between upper and lower E-type cores 2, 2 'and lower E-type core 2; In the neon transformer (1) combining the case and the case (7), slits 61 are formed at equal intervals on the outer circumference of the bobbin 6, and the start line and one end of the coil 5 are connected to the upper plate. The first connection part 8 to which the connected connection wires 12 are connected and the second connection part 9 to which the final line of the coil 5 is connected are formed to connect the output lines 10 and 10 ', and at one side thereof. Protruding through the insulating material injection holes 13, 13 'and ribs 63, 64 to the upper and lower parts so that the rib 64 is combined with the groove portion 73 of the case 7 to increase the creepage distance A protective groove 74 is formed so as to protrude outward in connection with the outer wall 72 of the case 7 to protect the connecting wire 12 and the outer walls 71 and 72 protruding to the upper part of the case 7. When combined with the bobbin 6, the first connection part 8 and the second connection part 9 are provided. The inner wall 86, 94 is connected to the coil connection (6) and the output line 10, 10 ', the neon transmitter, characterized in that configured not to be exposed to the outside high-voltage secondary winding bobbin. The first connection part 8 is connected to a fixing wall 82 for fixing the end portion of the hole 81 through which the connection wire 12 passes and the connection wire 12 at a right angle. The connecting pin 83 which wraps the core wire of the electric wire 12, and protrudes on one side of the fixing wall 82, connects with the inner wall 86, and inserts the passage 84 so that the output wire 10 is fitted and the core wire is drawn out. The formed fixing tube 85 and the inner wall 86 and the outer side of the fixing tube 85 has a groove 87 into which the protrusion 711 of the outer wall 71 protruding above the case 7 is fitted. Bobbin for neon transformer secondary high voltage winding. The method according to claim 1, wherein the rod 91 protrudes to prevent disconnection of the final line of the wound coil 5 and connects the end wire of the coil 5 and the core wire of the output line 10 '. Fixing tube 96 and inner wall 94 connected to the supporting part 93 and inner wall 94 having the mold pin 92 coupled thereto, and having a passage 95 formed therein so that the output line 10 ′ is inserted and the core wire is drawn out. And a groove 97 into which the protrusion 721 of the outer wall 72 protruding above the case 7 is fitted to the outside of the fixed tube 96. 2. The stepped portion (A) according to claim 1, wherein the outer circumference between the slits 61 formed at equal intervals in the bobbin 6 is gradually enlarged toward the outside of the upper and lower portions than the center portion, and is stepped on both sides. Neon transformer secondary high-voltage winding bobbin, characterized in that formed.