KR19980021451A - Apparatus for manufacturing film type deflection member - Google Patents

Abstract

The present invention provides an apparatus for producing a film-type deflection member of a cathode ray tube for forming a deflection member by forming and bending the planarized film for the deflection member into a predetermined shape, respectively.

The apparatus includes: an upper mold 101 for lowering a plurality of films to be formed into a predetermined shape, heating the film F to a predetermined temperature by a built-in heater 105, and pressing the film; As the upper mold 101 descends, the upper surface is formed in a predetermined shape so that the plurality of films F are formed and bent, and the heater 105 is built in the upper mold 101, and the film F is loaded on the upper surface. And a plate 102 installed below the forming die and supporting the forming die 103 so that the forming die 103 is not separated by the lowering of the upper die 101. do.

Accordingly, each film can be molded into a predetermined shape without damage or damage to the film or conductors and without wrinkles so that the film-type deflection member can be mounted at a predetermined position of the cathode ray tube to form an efficient predetermined magnetic field. In addition, there is an effect that can realize a film-type deflection member.

Description

Apparatus for manufacturing film type deflection member

The present invention relates to a method for manufacturing a film-type deflection member of a cathode ray tube and a deflection member manufactured by the same, and in particular, a plurality of films in which a plurality of conductors are embedded in a predetermined pattern are formed and bent in the deflection portion in a predetermined shape, respectively. And it relates to a film-type deflection member manufacturing apparatus of the cathode ray tube manufactured by laminating.

In Fig. 1, a panel 12 having a fluorescent screen 20 formed on the rear surface of a face plate 18, and an electron gun 11 for forming electron beams 19a and 19b and emitting them toward the screen 20 are provided. The color cathode ray tube 10 includes a neck 14, a funnel 13 connecting the neck 14 and the panel 12, and a deflection yoke assembly 17 mounted to the neck-funnel connection portion. Shown.

An inner conductive layer (not shown) in contact with the anode terminal 15 is formed on the inner surface of the funnel 13. The shadow mask 16 having a plurality of aperture slits 16a formed in a predetermined arrangement is detachably mounted to the panel 12 at a predetermined distance from the screen 20.

The deflection yoke assembly (deflection device) 17 usually has a horizontal deflection member and a vertical deflection member. The horizontal deflection member forms a horizontal deflection magnetic field to horizontally deflect the motion paths of the electron beams 19a and 19b when a horizontal deflection current is applied, while the vertical deflection member is an electron beam 19a when a vertical deflection current is applied. , 19b) form a vertical deflection magnetic field to vertically deflect the motion. By changing the deflection magnetic field by changing the current applied to the deflecting device, the electron beams 19a and 19b are scanned over the entire surface of the screen 22 to form a two-dimensional image in the cathode ray tube panel 12.

Conventional horizontal and vertical deflection members are wound coils, and the winding methods include a toroidal type winding method and a saddle type winding method. A saddle type coil is mainly used as a horizontal deflection coil. Is wound into a toroidal type or saddle type coil.

However, due to the limitation of the pattern of the magnetic field along the winding and the unevenness of the product characteristics according to the conditions of the winding operation or the manufacturing process, the coiled deflection member has been developed a lot of film-type deflection members that can be manufactured more easily. Although attempts have been made, many problems have arisen in producing a deflection member of a cathode ray tube using the film, and thus, it has not been commercialized or commercialized. In order to realize this, various types of film structures applied by the applicant will be briefly described with reference to FIGS. 2 to 5 as follows.

In FIG. 2, the film F ₁ (F _n ) having at least one conductive line E having a predetermined pattern structure embedded therein is planarized and mounted at a predetermined position on the inner surface of the core 236. A deflection portion TF forming a three-dimensional curved shape for forming a pattern, and a pair of longitudinally extending ends before and after the deflection portion (up and down in the drawing) and bent from the front and rear ends of the core 236 to the outer surface; Connecting terminals CE ₁ ,... CE ₄₁ (CE ₁ ,... CE ₄₁ ) to extend electrically in the lengthwise direction at the front and rear ends of the bending portions BF, BF ′ and their respective films or conductors in a predetermined wiring structure. ´ ₀ ,… CE´ ₄₀ ), pluggable reinforcing members RP, RP ₁ , RP ₂ and connectors C, C ₁ , C ₂ provided with connections CF, CF ′. The patterns of the conductive lines E ₁ ,... E _{40 in} the deflection portion TF are formed in a structure that forms a predetermined magnetic field when forming a three-dimensional curved shape.

In the bending portions BF and BF 'of the film F ₁ (F _n ), a plurality of slits S are formed in the longitudinal direction, and burst prevention holes SR are formed at both ends of the slits S. and forming a front end portion that is on the drawing the upper part of each conductor (E) is provided with a connector (C) the connector connecting terminal being connected to the _{(CE 1, ... CE 41)} (CE' 0, ... CE' 40).

Connector Terminal (CE _1, ... CE ₄₁₎ positive connector of the outermost connection terminals (CE ₁₎ of the (CE _41), the outer two sides jump conductors (JE _1, JE ₂₎ is embedded in the form, such as a wire is embedded It is formed to extend to the end of each of the jump conductor (JE ₁ , JE ₂ ) is exposed one side of the conductive wire to the outside to form an external jump terminal (OE ₁ , OE ₂ ). In addition, 40 conductive wires are formed in the deflection portion, and in the connector connecting terminals CE´ ₀ and CE ₄₁ for easy insertion into the connector C, the conductive wires are partially formed at one connection portion, and the bending portion, deflection portion, and the other side are formed. Although not formed in the connection part, the connector connection terminals CE´ ₀ and CE ₄₁ are removed depending on the wiring structure. When a plurality of conductive wires are embedded in one film F1... Fn on both sides, the conductive wires arranged up and down by the upper and lower conductive line connecting holes CH may be connected.

In the film of another example shown in FIG. 3B, the slits CS formed at the center thereof are extended and enlarged to the connecting part side, and the divided parts CF ₁ , CF ₂ , CF ′ ₁ , CF´ are formed. ₂ ), and each of the divided connections CF1, CF2, CF'1, CF'2 is configured to be spaced further apart. By dividing in this way, it is possible to position the connection end portions in free positions with each other and to further widen the width thereof.

Also, Figure 2c in the formed of a structure to time achieved a three-dimensional curved surface shape of the pattern of each conductive wire _{(E 1, ... E 40)} (E 1, ... E 40) in the deflection portion (TF) form a predetermined magnetic field , Having a first lead portion (E ₁ ,... E ₄₀ ) and a second lead portion (E ₁ , ... E ₄₀ ) formed symmetrically with respect to the center line, and the bending portions (BF, BF ′) have a first lead portion. And the film is divided into second and second lead portions, and in the connecting portions CF1, CF2, CF'1, and CF'2, the connecting terminals CE1, ... CE40 (CE41) of the divided first and second conductor portions ((CE ´0) CE´1… CE´40) can be further separated and extended horizontally so that the saddle type can be connected from the outside of the core 136.

The above-described various planarized films include pattern design of each conductor, fabrication of artwork (mask film), copper foil lamination on the base, photoresist coating, and negative film in the same manner as the conventional method of manufacturing a flexible printed circuit film (FPC). It is manufactured by the manufacturing method including a series of processes of image development and copper foil etching.

The flattened film prepared as described above should be molded at a high temperature for forming into a predetermined shape for use as a deflection member of the cathode ray tube, but depending on the molding conditions, the film or conductor may be broken or damaged, Problems such as the formation of wrinkles have been derived.

The present invention is to solve the above-mentioned problems, and the film-type deflection member manufacturing method of the cathode ray tube for forming the deflection member by forming and bending the flattened film for the deflection member into a predetermined shape, respectively, and produced by The object is to provide a biasing member.

1 is a partial cross-sectional plan view schematically showing the configuration of a color cathode ray tube;

2, a, b, and c are plan views showing examples of various types of planarized films constituting the film type deflection member;

3 is a perspective view showing only the deflection portion without the connection portion of the film type deflection member;

4 is a cross-sectional view taken along line 2-2 of FIG. 1;

5 is a cross-sectional view taken along line 5-5 of FIG. 4;

6 is a process chart for explaining the manufacturing process of the film-type deflection member,

7 is a side cross-sectional view of a mold for laminating a plurality of films and forming a deflection portion of a deflection member;

Fig. 8A is a side cross-sectional view showing a state in which a mold according to the present invention forms and bends a film type deflection member, and b is a schematic perspective view showing a state after the film type deflection member of a is formed and bent.

Explanation of symbols about main parts of the drawings

10 cathode ray tube 11 electron gun 12 panel

13: Funnel 14: Neck 15: Anode Terminal

16 shadow mask 18 face plate 19a, 19b electron beam

20: screen 117: deflection yoke assembly (deflection device) 135: bobbin 136: core

F ₁ ,… F _n : film (FPC substrate) C, C ₁ , C ₂ : connector

E: Lead E ₁ , E ₂ : External jump terminal JE ₁ , JE ₂ : Jump lead

CE ₁ ,.. CE ₄₁ ; CE´ ₀ ,. CE´ ₄₀ : Connector

LF, RF, UF, BF: Film type deflection member TF: Deflection part (forming part)

CF, CF´, CF ₁ , CF ₂ , CF´ ₁ , CF´ ₂ : Connecting part BF, BF´: Bending part

RP, RP ₁ , RP ₂ : Plug type reinforcement member CH: Vertical wire connecting hole

100: forming mold 101: upper mold 101a: upper forming part

102 plate 102a fixing member 103 forming die

103a: lower forming unit 104: compression spring 105: heater

103b: groove

In order to achieve this object, the present invention is manufactured to be mounted on the bobbin by forming and laminating a plurality of planarized films, each having a plurality of conductive wires in a predetermined pattern so as to form a predetermined magnetic field, respectively, by forming and laminating them into a predetermined shape. In the apparatus for producing a film type deflection member of a cathode ray tube:

An upper mold for lowering a plurality of films to form a predetermined shape, heating the films to a predetermined temperature by a built-in heater, and pressing the film;

Forming die which is coupled to each other by the upper mold is lowered to form a predetermined shape so that a plurality of films are formed and bent, the heater is embedded, the film is loaded on the upper surface; And

Provided is a lower portion of the forming die, the upper mold is provided with a film-type deflection member manufacturing apparatus characterized in that it comprises a plate for holding the forming die so that the forming die is not separated by falling.

Further, an upper forming portion and a lower forming portion are formed on the bottom surface of the upper mold and the upper surface of the forming die of the present invention to form curved surfaces having the same shape as the inner and outer surfaces of the bobbin so that a plurality of films are mounted on the bobbin.

On the other hand, a predetermined groove formed on the bottom of the forming die;

A fixing member formed integrally with the bottom of the inner plate and inserted into the recess to prevent the correct position of the forming die from being released by the pressing of the upper mold; And a compression spring which is fitted to the fixing member to cushion the lowering force of the forming die.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 7 and 8A and b.

Apparatus for manufacturing the film-type deflection member of the present invention, that is, the forming mold 100, the upper mold 101 and the upper mold (100) having a built-in heater 105 to form and heat the film (F) to a predetermined temperature and pressurized ( A forming die 103 having a heater 105 so as to be engaged with each other and forming a film, and a plate 102 installed under the forming die 103 and supporting and fixing the forming die 103. It consists of.

The lower surface of the upper mold 101 and the upper surface of the forming die 103 are formed with an upper forming portion 101a and a lower forming portion 103a respectively forming a curved surface having the same shape as the bobbin 135.

In addition, a predetermined groove 103b is formed in the bottom surface of the forming die 103 so that the exact position of the forming die 103 is not separated, and an inner bottom of the plate 102 is integrated to be inserted into the groove 103b. The fixing member 102a is formed to protrude into, and a compression spring 104 that buffers the lowering force of the forming die 103 is fitted to the fixing member 102a.

The action of the film-type deflection member manufacturing apparatus of the cathode ray tube according to the present invention by the above-described configuration is as follows.

7 and 8 show a state in which the forming mold 100 according to the present invention forms and bends the film-like deflection member, and a plurality of conducting wires each have a predetermined pattern to form a predetermined magnetic field. A plurality of built-in, planarized films F are provided. The outer structure of the film F is basically flattened as shown in Figs. 2A to 2C, and the three-dimensional curved shape is formed at a predetermined position on the inner surface of the core 136 to form a predetermined magnetic field pattern. A deflection portion TF, a pair of bending portions BF and BF 'extending longitudinally in front and rear ends of the deflection portion (up and down ends in the drawing) and bent outward at both front and rear ends of the core 136; Plugs (CE ₁ , ... CE ₄₁ ) (CE´ ₀ , ... CE´ ₄₀ ), plugs extending in the longitudinal direction from both ends of the bending portion and extending in the longitudinal direction to electrically connect the films or the conductors with each other in a predetermined connection structure. Type reinforcing members (RP, RP ₁ , RP ₂ ) and connectors (C, C ₁ , C ₂ ) is provided with a connection (CF, CF ') is provided.

The surface temperature of the forming part of the upper mold 100 and the forming die 103 by the upper mold 100 of the forming mold 100 and the heater 105 embedded in the forming die 103 as shown in FIG. Is heated to a predetermined temperature, for example ± 50 ° C of the glass transition temperature (300 ° C for polyimide) of the film material. When the surface temperature of the upper mold 100 and the forming die 103 reaches a predetermined temperature suitable for forming the film F, the film F is loaded on the upper surface of the forming die 103 and the heater 63 After blocking the upper mold 101 is lowered to form the same shape as the bobbin 135 so that the film (F) is mounted on the bobbin 135. At this time, the forming die 103 is lowered by the lowering force of the upper mold 101 while the forming die 103 is bent upwards to form the bending part of the connecting portion CF of the film F which extends across the left and right sides of the drawing. .

Thereafter, the upper mold 101 is lowered to form and bend the film F in the same shape as the bobbin 135, and the film F is cooled by cooling the upper mold 101 and the forming die 103 in the joined state. It is solidified in the same shape as the bobbin 135 to be mounted on the bobbin 135. Cooling of the upper mold 101 and the forming die 103, the surface temperature of the forming part is cooled to room temperature, in the case of air cooling by air blow should be cooled for 30 to 60 minutes, although not shown, the upper mold 101 And by forming a cooling water passage near the surface of the forming part of the forming die 103 and passing the cooling water through the cooling water passage, it is also possible to quench the water within a shorter time by water cooling.

On the other hand, the fixing member 102a formed to integrally protrude on the inner bottom of the plate 102 is inserted into the groove 103b formed on the bottom surface of the forming die 103 via the compression spring 104 to form the forming die 103. The fixing of the support prevents the separation of the forming die 103 due to the pressing force of the lower mold 101 during forming, and buffers the film F in the correct position.

As such, when forming is completed, the upper mold 101 is spaced apart from the forming die 103, and the solidified film F is unloaded from the forming mold 100 so as to be mounted on the bobbin 135. The deflection member is formed by stacking as many as possible. At this time, the deflection members LF, RF, UF, and BF can be directly laminated and fixed to a fixture such as a bobbin 135 to be mounted at a predetermined mounting position of the cathode ray tube. In addition, it may be fixed by a biasing member using a separate fixing member. The assembly of the deflecting device 117 is completed by assembling the deflection member to the fixture as described above and then connecting the connecting portions CF of the respective films F to the predetermined connection structure of the saddle type or toroidal type. 117 is mounted at a predetermined position of the cathode ray tube.

According to the configuration and function of the deflection member manufactured by the apparatus for producing a film type deflection member of the cathode ray tube of the present invention as described above, the film deflection member is mounted at a predetermined position of the cathode ray tube to form an efficient predetermined magnetic field. It is possible to form and bend a plurality of films in the same form as the bobbins so that they can be directly mounted on the bobbin without damaging or damaging the film or conductors, and without wrinkles. Furthermore, the film-like deflection member can be realized. There is. While the present invention has been shown and described with respect to particular preferred embodiments, it is not limited thereto, and various applications and modifications may be made by those skilled in the art without departing from the spirit of the present invention or the scope of the following claims. It will be possible.

Claims (3)

Apparatus for manufacturing a film-type deflection member of a cathode ray tube manufactured to be mounted on a bobbin by forming and stacking a plurality of planarized films each having a plurality of conductive wires embedded in a predetermined pattern so as to form a predetermined magnetic field, respectively. Following: An upper mold 101 which lowers the plurality of films F to form a predetermined shape, heats the films F to a predetermined temperature by a built-in heater 105, and pressurizes them; As the upper mold 101 descends, the upper surface is formed into a predetermined shape so that the plurality of films F are formed and bent, and the heater 105 is embedded therein, and the film F is loaded on the upper surface. Forming die 103; And a plate 102 installed below the forming die 103 and supporting the forming die 103 by lowering the upper mold 101. . The lower surface of the upper mold 101 and the upper surface of the forming die 103 is the same as the inner and outer surfaces of the bobbin 135 so that the plurality of films (F) is mounted on the bobbin 135. Apparatus for producing a film-type deflection member, characterized in that the upper forming portion 101a and the lower forming portion 103a respectively forming a curved surface. The method of claim 1, wherein the bottom of the forming die 103 has a predetermined groove (103b); The fixing member 102a is formed integrally with the inner bottom of the plate 102 and is inserted into the recess 103b to prevent the correct position of the forming die 103 from being released by the pressing of the upper mold 101. ; And a compression spring (104) inserted into the fixing member (102a) to buffer the lowering force of the forming die (103).