TW411482B - Focus volume of FBT, and its coupling device - Google Patents

Abstract

A focus volume of an FBT (fly back transformer) focus unit and its coupling device are disclosed, in which a volume board is provided in a small size, but the voltage breakdown resisting strength is reinforced. At least one or more round resistor patterns 130 are formed on a volume board 120 which is installed within a focus volume 100 of the FBT focus unit 110. An opening 140 is formed within each of round portions of the resistor patterns 130, and a volume case 180 has a pair of isolating walls 160 within its interior 170, for being inserted into the opening 140 of the volume board 120. The volume case 180 is installed on a side of an FBT case 150. Thus the volume board is made to have a small size, but its voltage breakdown resisting strength is reinforced. Therefore, the filling of an epoxy resin is not required, thereby simplifying the manufacturing process, and making it easy to manufacture the product.

Description

411482 V. Description of the invention (1) Background of the invention < Field of invention > The present invention relates to a flyback transformer (FBT). The flyback transformer generates a high voltage to supply the cathode ray chelates of a TV or a monitor, especially the present invention. Regarding the focus part of the flyback transformer and its coupling device, the part of the focus unit of the flyback transformer has a smaller size, but its strength against voltage collapse has been enhanced. In particular, the present invention relates to a focusing portion of a flyback grinder and a coupling device thereof, in which a resistance pattern is formed on a part plate, and the resistance pattern has one or more circular portions with moving contact points, and The focus unit of the scanning transformer is installed with a part board. Moreover, the part board is opened and the opening covers the center of the virtual circle extending along the circular part of the resistance pattern, and also covers the virtual straight line connecting the start point and the end point of the circular part. a part. Therefore, when manufacturing the partial plate of the focusing unit (one side of the flyback transformer box on which the focusing unit is installed), the focusing ceramic plate can be manufactured separately, and then the internal resistance pattern is printed. Therefore, a small size board is provided, but the strength against voltage collapse has been enhanced. In addition, the “simplification of the procedure for manufacturing the part board” does not need to be filled with an epoxy resin. Therefore, the part board can be manufactured in a simple manner. Moreover, a ceramic plate can be used for small or large panels). Therefore, the panels can be standardized. < Description of the preferred embodiment > In the conventionally known conventional flyback transformer, high and low voltage spools are installed in the flyback transformer box. This spool generates high voltage to supply the TV or monitor via the anode. Cathode ray tube? Here, a focusing unit mounted on one side of the flyback transformer box changes focus and curtain voltage. Figure 1 shows a focus unit 8 of a conventional flyback transformer.

Page 5 411482 V. Description of the invention (2) '-In referring to FIG. 1, the focusing part grip 30 and the rotating member 40 extending toward the main unit 20 of the focusing unit 10 are integrally formed. Ampere-slider 50 on the rotating member 40. A ceramic plate 70 is mounted on the slider 50, and a ^ 11 pattern 60 is printed on the ceramic plate. This resistance pattern includes a variable contact point and a center contact point. The M contact point and the center contact point are connected to the contact point of the slider 50. Cover the ceramic panel ^ with a soft insulating resin, the ceramic panel has a resistance pattern v. In the traditional focusing unit 10 constructed according to the above method, for focusing and the curtain voltage is increased or decreased in a stepwise manner: if the focusing part Hold it 30 (extend to the outside of the main body 30) and turn it manually, then turn the slider 50 and move the 40: so the voltage can be increased or decreased along the m7G resistance map. ^ Meanwhile, the second figure shows the ceramic plate used on the conventional focusing unit 10). Please refer to the accompanying drawings' In the resistance pattern 60, a contact point 6m of the slider 50 is placed between the shaft 63 and the circular resistance pattern 60 of the focus voltage W. The contact point of the slider 50 rotates the shaft 63 and follows the contact point 61. == Next, if a high voltage of about H0KV is input to the round-in terminal 67, a high voltage can be provided between the input terminal 67 and the ground point 66, and the ㈣ contact point 61 transmits the wheel-out focus voltage 64. -The output screen i Haw 1, and the shaft 69 have the same relationship, and the decreasing voltage formed by the step is transmitted through the contact point 61. The patterned resistance pattern is swept, so a potential is generated in between. At the distance of the output focus 64, the program prevents voltage breakdown strength. However, since the contact point 61 is along the circular resistance pattern and the resistance between the output focus 64 and the circular resistance pattern 60 is a very important factor.

Page 6 411482 Jade 'Description of Invention (3)-In particular, the size of the circular resistance pattern 60 cannot be larger than u ~, j is beyond the limit of the ceramic plate • 70, and therefore it is necessary to increase the prevention Voltage collapse intensity. Therefore, as shown in FIG. 3a, the opening 80 is conventionally formed, or as shown in FIG. 3, a closed opening 90 and / or the opening 80 is formed: Therefore, the anti-voltage = burst strength can be enhanced. Figures 3a to 3 show different examples of conventional panels. The first diagram shows the panel without center point P, but with an opening 80. In FIG. 3b, the center point P and the closed opening 90 are formed: In FIG. 3c, the center p is used as the closed opening, and the opening 80 is formed. A plate in which two openings 80 which do not cover the center point ρ are formed at the near ends and closed openings 90 are formed at the center and the near upper end. In the above example, the example of providing an opening from the center point to the edge is compared. : Unable to obtain sufficient voltage collapse strength. Further, in the example where the above-mentioned ceramic plate 70 having the resistance pattern 60 is used, the inside of the focusing unit 10 is covered with a soft epoxy resin, and a resin curing operation can be performed. Therefore, due to the complicated structure and complicated manufacturing procedures, the assembly and production capabilities are extremely reduced. < General invention > The object of the present invention is to overcome the shortcomings of the conventional techniques described above. Therefore, the object of the present invention is to provide a focusing portion of a flyback transformer focusing unit 'wherein when the focusing portion of the focusing unit is manufactured, a focusing ceramic plate is provided to form an opening around the center point, and then the upper resistance pattern is printed, Make the size of the board small enough: while still enhancing the strength against voltage collapse, the present invention

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V. Description of the invention (4) Insulation resin is not used but the manufacturing process is simplified. The manufacturing process becomes simpler and a ceramic-free board can be used for small or large parts. Another object is to provide a focusing unit coupling device for a focusing unit of a flyback transformer, in which a focusing unit isolation unit box can be installed; therefore, the focusing unit can be installed in a single place. The board can be insulated from the spool in a certain manner. Good morning in order to achieve the above-mentioned purpose 'The present invention provides a focusing section of a flyback transformer focusing unit, which includes a 5 plate installed at the focusing center of the flyback transformer 丨 a plate having one or more circular parts and located on the plate The resistance pattern on the pattern '· and a variable contact point moves along the circular part and around its center point. — Openings formed in each of the circular resistance patterns; and the opening covers the center contact of a slider Point, that is, the center of the virtual circle extends along the resistance pattern ^ circular portion, and covers a part of the virtual straight line connecting the start point and end point of the circular portion of the resistance pattern ❶ ° ” In the design concept, the focusing portion of a flyback transformer focusing unit according to the present invention includes: a focusing portion plate installed in the focusing unit of the flyback transformer; and a focusing resistor having a circular portion and located on the focusing portion plate 2 Pattern, and a variable contact point moves along the circular part, the circular part is along the center point of the focusing circular part; a curtain installed in the focusing unit of the flyback transformer Plate; a curtain resistance pattern on the plate with a circular portion, including-a variable contact point along the circular portion * this circular portion is around the center point of the circular portion of the curtain. The opening formed on the focus and screen resistance pattern; and the center contact point of the U-shaped slider of the open second cover is along the focus and screen resistance pattern

V. Description of the invention (5) The center of the virtual bezel extending from the circular part and covering a part of the virtual straight line between the starting point and the ending point of the circular part connecting the focus and screen resistance patterns. Focus and curtain board. In another design concept of the present invention, the present invention provides a focusing unit coupling device of a focusing unit of a flyback transformer, comprising: a part plate with a resistance pattern printed thereon, the resistance pattern having at least one circular portion; The variable contact point surrounds the central contact point of the slider. The circular plate has an opening in each circular part; a section box having a coupling space for the section plate is provided to surround the section plate; Next door to insert into the opening of the board 'so that it can be extended from the * section; and a cover: after inserting the board into the box, the cover can be coupled to the box " < Brief description > The features and advantages of the present invention can be further understood from the following description. Please refer to the drawings when reading, "Figure 1 is a front view of a general focusing unit installed on one side of the flyback transformer box; Fig. 2 is a schematic diagram illustrating a conventional focusing section plate to be installed on the side of the flyback transformer box; Figs. 3 a to 3 e illustrate another example of the conventional focusing plate; and Fig. 4 is a focusing section plate according to the present invention Schematic perspective view of Fig. 5 Another example of a perspective display part box and a focusing part plate and other starting elements according to the present invention; and a perspective view of FIG. 6 showing a focusing part case and a part plate according to the present invention. < Comparison of component names and symbols in the illustration > 1

411482 V. Description of the invention (6) 1 0: Focusing unit 20: Main body 3 0: Grip 4 0: Rotating member 5 0: Slider 6 0: Resistance pattern 61, 6 Γ: Contact point 62: Focus voltage 6 3: Axis 64: Focus voltage 65: Output screen voltage 6 6: Ground point 67: Input 6: 9: # 7 0: Ceramic plate 80: Opening 9 0: Closed opening I 0 0: Focusing section II 0: Focusing unit 120: Focusing Panel 120 ': curtain panel 1 3 0: circular resistance pattern 130': curtain resistance pattern 1 3 0 a: starting point

Page 10 411482 V. Description of the invention (7) 130b: End point 140 140 'Opening 150 Flyback transformer box 160 Partition wall 170 Part board coupling space 180 Part box 190 Flyback transformer 210 Grip handle hole 220 Cover 230 240 250 partition wall 260 focusing output terminal 270 curtain output terminal P: center point L: lead wire < detailed description of preferred embodiment > FIG. 4 is a schematic perspective view of a focusing plate according to the present invention. The focus part 100 of the present invention will be described later. That is, a resistor pattern 1 3 0 is printed on the part board 120. The part board is installed on one side of the focus unit 110 of the flyback transformer. The resistance pattern 30 includes at least one or more circular portions, and a variable contact point is developed around the center contact point of the circular portion. Each circular part of the resistance pattern 1 3 0 forms an opening 14 0 The opening 140 covers the center contact point that is the center of the virtual circle.

Page 11 411482 V. Description of the invention (8) The pseudo-circle extends along the circular part of the resistance pattern 1 30: the opening 1 40 further covers a part of the virtual straight line: the virtual straight line covers the circular part of the resistance pattern 130 Start point 130a and end point 130b. Fig. 5 is an exploded perspective view showing a focus plate and other related parts of the present invention, and another example thereof. A focus section plate formed on the focus section plate 120, and the focus resistance pattern 130 has a circular portion. Along this circular portion, a variable contact point moves around the center contact point p of the circular portion. . A curtain resistance pattern 130 'is formed on the curtain part plate 120', and the curtain resistance pattern has a 圊 -shaped portion 1 3 0 '. A type of contact point is moved around the center contact point of the circular portion. Moreover, openings 140 and 14 are formed in the circular parts of the focus and screen resistance patterns 130 and 130 '(Γ »each opening 1 40 and 1 4 0' covers a central contact point, which is along the resistance pattern 1 3 0 And the center of the virtual circle extending from the circular portion of 1 30 ′, the openings 140 and 140 ′ further cover the connection starting point resistance patterns 13 and 13, the starting point 130a and ending point 130, and 120 of the circular portion The partial box 180 is a plate coupling space 丨 70. The partition wall 160 surrounds the partial plates 120 and 120 'and has the insertion openings 140 and 140, and the height of the partition wall Greater than the thickness of the part plate 120 that will protrude above it. The part box 130 is covered by a pair of covers 220 which are only the motion grips 200 of the flyback transformer 190. That is, the motion grips have only a pair of grips Access hole 2m. A pair of inner shaft coupling holes 240 are formed in the partition wall 160 of the part box 180. The part box 180 has a partition wall 250 to form two internal spaces. Curtain board 12〇, 12〇, — =

Page 12 411482 V. Description of the Invention (9) 260 and curtain output end 270 connect the part shaft 230 to the lower part of the part box 180 respectively. This will be described later with respect to the actions and effects of the present invention having the above-mentioned structure. As shown in FIG. 4, a resistance pattern 1 3 0 is printed on the plate 120 of the focusing portion, so a resistance pattern 1 3 0 is formed. Here, the resistance pattern 130 includes at least one or more circular portions, and the variable contact point moves around the center contact point ρ. Openings are then formed in each circular portion of the resistance pattern 130. The opening 1 4 0 covers the center contact point P, which is the center of a virtual circle inserted along a circular portion of the resistance pattern 丨 3 〇. The opening 140 further covers a virtual straight line '. This virtual straight line connects the start point 1 3 0 a and the end point 1 3 0 b of the circular portion of the resistance pattern 1 3 0. -The door 12 is therefore opened. The outer contour of the opening 140 of the part 120 can be curved or rectangular, and the opening 140 covers the center point of the circular portion of the resistance pattern 130 and also covers the starting point and end point of the circular portion of the resistance pattern 130. Part of a virtual straight line. According to this method, the opening 1 40 can be formed by cutting the edge of the part plate 120. The material of the part plate is a ceramic material. In this state, the starting point of the circular portion of the resistance pattern 130 is 13 a and the end point 13b can be changed to each other. At the same time, the present invention provides another embodiment of the focusing section plate which can be inserted into the section box shown in FIG. In this embodiment, a focusing resistor pattern is formed on the part plate 120 of the focusing part 100, which is mounted in the focusing unit 11o of the flyback transformer box 150. The variable contact point moves along the circular part of the resistance pattern 130, and the resistance pattern contacts around the center

Page 13 411482 Five 'Explanation of invention (ίο) point. Separated from this is a curtain sheet; the curtain resistance pattern 1 2 0 formed on! 2 0 ′. A variable contact point moves along the circular portion of the curtain resistance pattern around the central contact point p? Openings 140, · 140 'are formed in the circular portions of the focus and curtain resistance patterns 130, .130, respectively. Each opening 140: 140 'covers the center contact point P. The contact point is the center of a virtual circle inserted around the circular portion of the resistance pattern 130 ,, 130'. Each opening 140 further covers a portion a of the virtual straight line starting point 13a and ending s13ob of the circular portion connecting the resistance pattern 130 ′ 130 ′, so that the plate is opened respectively. In order to obtain the focus and the curtain voltage, the partial plates 120 may be formed as shown in Figs. 5 and 6 respectively. In order to accommodate these parts 120, 120, the parts box 18o is formed so that the two partitions can surround the parts 120 and 120. As shown in Section 5 (b), the internal space of the internal box 800 has a partition wall 160 in it: Therefore, the partition wall 160 can be inserted into the openings 14 and 14 ′. The cover 220 engages the part box 180, and the action grip 200 passes through the cover 220: Therefore, the cover 220 can protect the part plate 120. Therefore, it is possible to effectively insulate the part plate 20, and it is not even necessary to fill the insulation box 880 with the insulating resin. In particular, a flyback transformer 190 having two contact points is installed at each of the action grips 2000. ‘The part shaft 230 extends downward from each of the action grips 200, and the part shaft 230 is inserted into the partition wall 16 of the part box wo, respectively. As shown in Fig. 5, the "part box 18" has a partition wall 250, which can divide the internal space of the part box 180 into two parts, so that the two boards 丨 20 and 丨 20 can enter the two parts. Medium: Therefore,. Can maximize the strength against voltage collapse. The focusing output terminal 26 and the curtain output terminal 27 are fixed below the one box 180.

Page 14 411482 V. Description of the invention (11) Do not connect the shaft 230 f. Therefore, if the handle 200 is flipped over, the contact point of the flyback transformer 190 will move along the circular portion of the resistance pattern. Therefore, an input voltage is provided through the focus input lead L of the resistance pattern 130 and an output voltage adjusted by the focus output lead L ′ of the focus output terminal 260: in this state, at each focus and screen resistance pattern 13, There is an opening 14 0 or 14 0 between the start point 1 3 0 a and the end point 1 3 0 b of 13 ′, so that the partition wall 160 can be inserted into it. Therefore, the start point 3oa and the end point The insulation between 130b becomes quite strong. And 'the flyback transformer 19, which is a contact point spring, is fixed to the shaft 230 in an insulated state, and therefore, there is a strong insulation distance between the exposed portion of the flyback transformer 19 and other resistance patterns', and The strong insulation distance is fixed between the lowermost end K of the shaft 23 and the circular resistance pattern 13, so all necessary insulation can be achieved. According to the invention described above, when manufacturing the focusing unit of the focusing unit, 'provide a focusing ceramic plate separately to form an opening around the center point, and then print the partial resistance pattern so that the size of the partial plate can be small enough to give Necessary to increase the strength against voltage collapse: so because it does not contain an insulating resin coating, so the manufacturing has been simplified, ie the manufacturing process is relatively simple and has a low cost, and a ceramic plate is used on small or large parts, Therefore, the boards can be standardized. The characteristics and advantages of the present invention can be understood from the above description: the spirit and perspective of the present invention are defined in the following patent applications when reading and referring to the accompanying drawings.

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Claims (1)

411482 VI. Application Patent Scope I A focusing part of a flyback transformer focusing unit, comprising: a part plate installed at the focus center of the flyback transformer; a resistor pattern having one or more circular parts and located on the part plate 'And a variable contact point moves along the circular part and around its center point; an opening formed in each of the circular resistance patterns; and a central contact point of a slider of the opening cover, that is, the center of the virtual circle It extends along the circular portion of the resistance pattern and covers a part of a virtual straight line connecting the start point and the end point of the circular portion of the resistance pattern. 2. For example, the focus section of the scope of patent application, where the opening arrangement of the plate is perpendicular to a # in the axis of the section, and covers the circle of the resistance pattern: ::: 'and covers the virtual circle. In part, the virtual system is connected between the start point and the end point of the circular portion of the resistance pattern. The opening can be formed by cutting the board. , In which the open portion of the plate is focused, in which the opening p is formed thereon 3. If the mouth of item A in the scope of the patent application has a predetermined design shape β β Exemption 4. If the scope of the patent application is 1 and 2 Φ This part is formed in the circular part of the resistor pattern 5. If the scope of patent application Number! The part of the focusing resistance pattern of the item is made of ceramic material. = = The focusing part of the focusing unit includes:-the focusing part plate in the focusing unit with pressure; like ... the variable contact point, the focusing on the focusing part plate The resistance ring moves along the focusing circular part ^ = shaped part, and the circular part is a point 411482. 6. The scope of the patent application-Anxiang's curtain plate in the focus unit of the flyback transformer; The curtain resistance pattern located on the curtain board includes a variable contact point moving along the circular portion, and the circular portion is around the center point of the circular portion of the curtain; the focus and the curtain resistance are respectively in the circle. The opening formed on the pattern; and the opening covering the center contact point of the slider, that is, the center of the virtual circle extending along the circular portion of the focus and screen resistance pattern, and covering the circle connecting the focus and screen resistance pattern A part of the virtual straight line between the start point and the end point of the shape part. The focusing and curtain board can be provided separately: 7. If the focusing section of the patent application scope item 6, the opening of the board Has a predetermined shape designed β 8. The claims, and sixth focusing section 7 in any of the items, wherein the openings on the plate portion positioned within the circular portion of the resistor pattern. 9. A focusing unit coupling device of a focusing unit of a flyback transformer, comprising a plate having a resistance pattern printed thereon, the resistance pattern having at least one circular portion, and a variable contact point around the slider of the portion. The central contact point has an opening in each circular part of the section plate; a section box having a section plate coupling space to surround the section plate; the Suan section box has a partition wall to insert the opening of the section plate, It can thus protrude from the part box; and a lid 'can be coupled to the part box after inserting the part plate into the part box. · If the focus part coupling device of the scope of patent application No. 9, in which the lid of the junction box has a pair of grip coupling holes, which allows the slider to pass 411482 6. Scope of patent application The slider has a center contact point and a variable contact point at the opening. 11. For example, the focusing unit coupling device of the 9th patent application range, wherein the partition walls of the box have respective shaft coupling openings for receiving the shaft of the unit *. 1 2. The focusing part coupling device according to item 9 of the scope of patent application, wherein the part box for receiving the part board has a partition wall for dividing the inside of the part box into two internal spaces to receive Focusing and curtain board "1 3. As the focusing section coupling device of the 9th scope of the patent application, one focusing output end and one curtain output end are fixed to the lower part of the box to connect the upper end of the shaft of the part respectively. Page 18