KR200176183Y1 - Electrical connecting structure of high power bobbin and focus pack in flyback transformer - Google Patents

Abstract

The electrical connection between the high voltage bobbin of the flyback transformer and the focus pack facilitates the coupling of the diode of the high voltage bobbin and the outgoing terminal of the focus pack, and also prevents the outgoing terminal of the focus pack from contacting other elements of the high pressure bobbin. In order to provide a structure, the connecting member 30 formed by bending a 'c' shape of the conductive piece 32 having a plurality of connecting protrusions 34 formed to be bent around the end thereof is integrally extended to the end of the high pressure bobbin 2 side. The lead terminals 15 of the formed focus pack 12 and the positions of the bent projections 44 that are bent correspond to the connection member 30 described above, and the tip portions thereof are connected to the lead wires 28 of the diode 8a. The lead terminal 36 bent into a predetermined shape is mounted on the inner circumference of the fixing protrusion 39 having the insertion groove 38 formed at the end thereof, and one side of the lead terminal 36 is connected to the lead wire 28 of the diode 8. Soldering connection, protrusion ( 44 is detachably connected to the connection member 30.

Description

Electrical connection structure of the high pressure bobbin of the flyback transformer and the focus pack

The present invention relates to an electrical connection structure of a high-pressure bobbin and a focus pack of a flyback transformer applying an appropriate high pressure to a television; In particular, the diode of the high voltage bobbin and the extraction terminal of the focus pack may be easily coupled, and at the same time, the high voltage bobbin of the flyback transformer and the focus pack may be prevented from coming into contact with other elements of the high pressure bobbin. It relates to an electrical connection structure.

Flyback transformer is a device that generates high pressure by using pulses generated during the return period of horizontal deflection output in cathode ray tube. Its configuration is filled and sealed with epoxy resin because the high pressure bobbin and the low pressure bobbin are placed inside the housing. In order to suppress the power loss due to magnetization caused by the high pressure bobbin and the low pressure bobbin, which are overlapped as described above, a pair of cores are inserted from the core penetrating portion of the low pressure bobbin over the outside of the housing. A focus pack that can variably adjust the high voltage generated by the low pressure bobbin and the high pressure bobbin to a voltage required for screen and focus control of the cathode ray tube is disposed at one side of the housing of the flyback transformer.

Fig. 2 is an exploded perspective view showing a combination of a diode of a conventional high voltage bobbin and a lead terminal of a focus pack.

On the outer circumference of the high pressure bobbin 2 which is superimposed on the outer circumference of the low pressure bobbin 1, the guide wall 4 and the protrusion 6 which guide the winding position of a coil protrude.

At predetermined positions of the side surfaces of the guide wall 4, diodes 8a, 8b, and 8c, which serve to back up and rectify the high pressure generated by the coil wound between the guide wall 4 and the projection 6, are provided. The support protrusions 10 to be mounted are symmetrically formed in a plurality of pairs.

Diodes 8a, 8b, and 8c are mounted on the plurality of symmetrical pairs of support protrusions 10, respectively.

On the inner circumference of the focus pack 12, a resistive coating is coated on a predetermined pattern, and a circuit board for varying the screen voltage and the focus voltage is arranged and filled with the epoxy resin 13, and the plurality of lead-outs drawn out from the circuit board are described. The terminals 14 and 15 protrude out of the epoxy resin 13 described above.

Among the plurality of drawing terminals 14 and 15 drawn out from the focus pack 12, one drawing terminal 14 is mounted on one side of the high-pressure bobbin 2 and formed in the housing 20. Is connected to the conductive rubber 26 which is electrically connected to the spiral portion 24 of the anode cable inserted into the housing 20.

The other lead terminal 15 is soldered to the lead wire 28 of the predetermined diode 8a among the diodes 8a, 8b, 8c of the high voltage bobbin 2 described above.

As described above, the coupling structure of the diode 8a of the high voltage bobbin 2 and the lead terminal 15 of the focus pack 12 is a lead wire of the lead terminal 15 and the diode 8a of the high voltage bobbin 2. (28) by hand soldering and the operator pulls out the lead terminal 15 in order to prevent the lead terminal 15 from being connected to the other elements 8a, 8b, 8c of the high pressure bobbin 2 in the above soldering connection process. ) Should be fixed by any means, so that there is a problem that the operation is not easy, and in the subsequent process, the above soldered portion is dropped or the lead terminal 15 is circumferentially wound around the high pressure bobbin 2. In contact with the other elements (8a, 8b, 8c) mounted on the there was a problem that the electrical insulation of the product is destroyed.

An object of the present invention is to solve the above-mentioned problems, to facilitate and securely combine the lead wire of the diode of the high voltage bobbin and the lead terminal of the focus pack, and the lead terminal is in contact with other elements of the high voltage bobbin It is intended to provide the electrical connection between the high-pressure bobbin of the flyback transformer and the focus pack to ensure that the insulation of the product is not destroyed.

1 is an exploded perspective view of a flyback transformer showing a connection structure between a device of a high-pressure bobbin and a lead terminal of a focus pack according to the present invention;

Fig. 2 is an exploded perspective view of a flyback transformer showing a connection structure between a device of a conventional high pressure bobbin and a lead terminal of a focus pack;

* Explanation of symbols for main parts of the drawings

1: low pressure bobbin 2: high pressure bobbin

4: guide wall 6: protrusion

8a, 8b, 8c: Diode 10: support protrusion

12: focus pack 14, 15: withdrawal terminal

20: housing 22: through part

24: spiral portion of the anodized cable 26: conductive rubber

28: lead wire 30: connection member

32: challenge 34: connection projection

44: protrusion

The present invention for realizing the above object is provided with a connection member attached to the end of the lead-out terminal of the focus pack, and a protrusion formed bent at a predetermined position corresponding to the connection member of the lead-out terminal of the focus pack on the lead wire of the predetermined diode of the high voltage bobbin. The lead terminal bent to a predetermined shape so as to be soldered and connected, the diode of the high-voltage bobbin and the lead terminal of the focus pack are detachably connected.

Preferred embodiments of the present invention configured as described above will be described in detail according to the accompanying drawings. In this embodiment, the same reference numerals as the parts described with reference to FIG. 2 are denoted by the same reference numerals to avoid duplication of explanation.

1 is an exploded perspective view of a flyback transformer according to the present invention.

On the inner circumference of the focus pack 12, a resistive film is coated on a predetermined pattern, and a circuit board for varying the screen voltage and the focus voltage is arranged and filled with epoxy resin 13, and the epoxy resin is provided at a plurality of output points of the circuit board. The lead terminals 14 and 15 formed in predetermined dimensions are connected so as to protrude outwardly (13).

The lead-out terminal 14 is formed in a cylindrical pin type, and the connection member 30 is formed to extend at the end of the high-pressure bobbin 2 side of the lead-out terminal 15.

The connection part 30 is formed by bending the conductive piece 32 in a 'c' shape, and forming the connecting protrusion 34 by bending the end of the conductive piece 32 in the high pressure bobbin 2 side. And the gap between the opposing surfaces thereof is bent so as to have a dimension slightly smaller than the diameter of the lead terminal 36 of the high pressure bobbin 2.

On the outer circumference of the high pressure bobbin 2 which is superimposed on the outer circumference of the low pressure bobbin 1, the guide wall 4 and the protrusion 6 which guide the winding position of a coil protrude.

At predetermined positions of the side surfaces of the guide wall 4, diodes 8a, 8b, and 8c, which serve to back up and rectify the high pressure generated by the coil wound between the guide wall 4 and the projection 6, are provided. The support protrusions 10 to be mounted are symmetrically formed in a plurality of pairs, and the fixing protrusions 39 having the insertion grooves 38 formed on the end of the predetermined support protrusions 10 in the same direction as the above-described support protrusions 10. Is formed to protrude.

Diodes 8a, 8b, and 8c are mounted on the plurality of symmetrical pairs of support protrusions 10, respectively, and one side lead wire 28 of the predetermined diode 8a is bent in a predetermined shape to form the fixing protrusion 39. The lead terminal 36 inserted into the insertion groove 38 is soldered and connected, and more specifically, the above-described connection terminal causes the tip portion to be connected to the lead wire 28 of the diode 8a, and the position of the protrusion 44 in the middle. Is bent to correspond to the connection member 30 of the focus pack 12.

When the focus pack 12 formed as described above and the housing 20 in which the low pressure bobbin 1 and the high pressure bobbin 2 are mounted are coupled, the lead terminal 14 of the focus pack 12 is connected to the high pressure bobbin 2. Is connected to the conductive rubber 26 which is mounted on one side of the cable and electrically connected to the spiral portion 24 of the anodized cable inserted into the housing 20 through the through portion 22 formed in the housing 20. The other lead terminal 15 is connected to the diode 8a of the high voltage bobbin 2 by a lead terminal 36 in which a projection 44 is inserted between the connecting projections 34 of the connecting member 30 formed at its end. Electrically connected.

Therefore, according to the present invention, the predetermined diode of the high voltage bobbin and the extraction terminal of the focus pack are firmly and easily connected, and the extraction terminal is not connected to other elements of the high voltage bobbin.

As described above, the present invention is to detachably connect the predetermined diode of the high-voltage bobbin and the lead terminal of the focus pack by a lead terminal and a connection member that are bent in a predetermined shape, so that the operation of fixing the lead terminal is omitted, thereby facilitating the operation. As a result, productivity is greatly improved, and the lead terminal is not connected to another element of the high-pressure bobbin, so that the defective rate of the product is greatly reduced.

Claims (1)

In the electrical connection structure of the high-pressure bobbin of the flyback transformer and the focus pack, the conductive member 32 having a plurality of connection protrusions 34 formed at the end of the flyback transformer is formed to be bent in a 'c' shape. The lead terminal 15 of the focus pack 12 integrally formed at the end of the high-pressure bobbin 2 side and the bent projection 44 are inserted into the connection member 30, and the front end portion is a diode 8a. A lead terminal 36 bent into a predetermined shape so as to be connected to the lead wire 28, and a fixing protrusion 39 formed at an end thereof so as to insert the lead terminal 36 therein. The electrical connection structure of the high pressure bobbin of the flyback transformer and the focus pack.