JPH0812787B2 - High voltage connector for power supply and method of manufacturing the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a high-voltage connector for a power supply and a method of manufacturing the same, and more particularly, to a high-voltage connector for a power supply of a copier, a facsimile, a printer, and the like, and a method of manufacturing the same. .

“Prior Art” Conventionally, for example, high-voltage connectors for power supplies of copiers, facsimiles, printers, etc. need to be robustly manufactured,
Therefore, a fixed resistor is connected between one end of the required high-voltage electric wire for power supply and the electrode sleeve.

[Problems to be Solved by the Invention] As described above, in molding a high-voltage connector for a power supply, a fixed resistor is connected to a holder and an electric wire is connected to the fixed resistor, which is extremely inefficient. Since the fixed resistor takes a considerable space and the distance between the fixed resistor and the insulation-coated electric wire is small, the fixed resistor is disconnected due to pressure, or the fixed resistor is eroded by the molding temperature to cause a resistance value. Changes.

Further, it may not be electrically and mechanically stable, and the cost increase cannot be avoided. "Means for solving the problem" This invention eliminates the above-mentioned drawbacks, and its gist is the molding process. In the above, the lower end of the fixed resistor enclosed in the holder is connected to a high voltage electric wire having an insulating protrusion edge arranged in the recess of the tank-shaped lower main body made of insulating synthetic resin, and the fixed resistor holder and A tank-shaped upper body made of an insulating synthetic resin having a shape corresponding to the lower body is united, the fixed resistor holder is guided into the cylinder of the upper body, and the fixed resistor holder and it are fitted to it. Manufactured by partially guiding the above-mentioned conductive coil spring to the upper part in the cylinder to improve the conductivity and preventing the disconnection of the fixed resistor and the electric wire in the injection molding process and the protection of the resistance value. High voltage for power supply Miniaturized as a whole connector is a high-voltage connector and a manufacturing method for the power supply to simplify the manufacturing process.

[Configuration] A high-voltage connector for a power supply according to the invention of the present application and a method of manufacturing the same will be described with reference to the accompanying drawings.

In FIGS. 3 to 6, a mold 10 for molding a tank-shaped lower body 30 made of an insulative synthetic resin is composed of a lower mold 12, an upper mold 14, and a side mold 16. As shown in FIG. As shown, the lower mold, the upper mold and the side mold form a cavity 18 for molding the lower body 30, and an injection for injecting a molten insulating synthetic resin into the upper mold from above. A hole 14a is formed to communicate with the cavity.

In the cavity 18 of the mold 10, the injection hole of the upper mold 14
Molten insulating synthetic resin is injected from 14a at high temperature (about 300 ° C) and high pressure (kg / cm ² ).

After the synthetic resin is cooled and cured, it is removed from the mold to obtain a synthetic resin tank-shaped lower main body 30 shown in FIG.

Then, a convex portion 30a is formed in the central portion of the right side wall, an input lead wire half-mounting through hole 30b is formed in the side wall and the convex portion 30a, and mounting flanges 30c, 30c are integrally formed on both sides of the bottom portion in a protruding state. To be installed.

Mold for molding tank type upper body 40 made of insulating synthetic resin
As shown in FIG. 4, 20 is composed of a lower mold 22 and an upper mold 24, and a cavity 28 for molding the upper main body 40 is formed by these molds 22 and 24, and the cavity 28 is formed on the upper mold from above. An injection hole 24a for injecting the molten synthetic resin is formed and communicated with the cavity.

In the cavity 28 of the mold 20, the injection hole of the upper mold 24
Molten insulating synthetic resin is injected from 24a at high temperature (about 300 ° C) and high pressure (kg / cm ² ).

After the synthetic resin is cooled and hardened, it is demolded to obtain a synthetic resin tank-shaped upper main body 40 shown in FIG.

Then, the outer end 42a of the high-voltage electric wire input lead wire 42, which is formed with an input lead wire half-cut through hole 40b in the center portion of the right side wall and the convex portion 40a, and on which a supporting insulating protrusion edge 42c is formed, is formed. The top plate 40c of the upper body 40 is partially fittable, and through holes 40d through which a fixed resistor holder 50 and a conductive coil spring 58 penetrate and a cylinder 40e are formed at regular intervals in the top plate 40c.

In FIGS. 7 to 9, the fixed resistor holder 50 has a small diameter head portion 52a having a lead wire through hole 52c formed at the center of the upper part and a screw groove 52b formed around the lead wire through hole 52c. The fixed resistor 56 is inserted into the cylindrical cavity 52d of the conductive outer cylinder 52 in which the diameter cylindrical cavity 52d is formed, and the non-conductive inner cylinder 54 is inserted from the lower portion of the outer cylinder.
The upper pole needle 56b of the fixed resistor is guided upward through the lead wire through hole 52c, and the conductive coil spring 58 of the conductive coil spring 58 is inserted into the screw groove 52b around the small diameter head 52a. The lower part is partially screwed to be connected to the fixed resistor inside, and the lower pole needle 56a of the fixed resistor is guided downward from a through hole 54c formed in the bottom 56b of the inner cylinder 54.

Each of the fixed resistor holders 50 manufactured in this manner is provided with a lower pole needle 56a around which a supporting insulating protrusion edge 42c is formed, and a high-voltage electric wire having a respective length within the tank-shaped lower body 40. The fixed resistor holders are connected to the inner ends 42b of the input lead wires 42, respectively, and the fixed resistor holders are set upright at predetermined intervals in the recesses 30d of the lower body as shown in FIG. Make it protrude upward.

Then, the input lead wires 42 are arranged in parallel to the inner bottom of the recess 30d, and the supporting insulating protrusions 42c of the input lead wires are brought into contact with the inner bottom.

In addition to the tank-shaped lower body 30 described above, the tank-shaped upper body 40
Are integrated and integrated, and the small-diameter head 52a of the fixed resistor holder 50 and the conductive coil spring 58 are partially guided into the cylinder 40e through the through hole 40d.

Further, by this combination, the side wall of the convex portion 30a on the right side wall of the tank type lower main body 30 and the input lead wire 42 in the half-mounting through hole 30b of the convex portion 30a are protruded from the right side wall of the tank type upper main body 40. Part 40
When the side wall of a and the half-cut through hole 40b of the convex portion 40a are fitted from above to cover the lead wire 42, the convex portions 30a and 40a are connected to the input terminal I.
Then, a high-voltage connector C for power supply having the output terminal 0 on the cylinder 40e is obtained.

In the third aspect, the conductive outer cylinder 52 is made of brass.

[Operation] According to the method of the present invention, the high voltage electric wire input in which the tank-shaped lower main body 30 and the tank-shaped lower main body 40 are injection-molded by the respective molds and the supporting insulating protrusion edge 42c is formed around Each fixed resistor holder 50 in which the lead wire 42 is juxtaposed in the recess 30d of the tank-shaped lower body 30, the lower end is connected to the input lead wire 42, and the conductive coil spring 58 is screwed on the upper end
Through the through holes formed in the bottom 56b of the inner cylinder 54, with the fixed resistor lower pole needle 56a standing upright in parallel in the recess 30d at regular intervals.
It is led downward from 54c and is connected to the inner end 42b of the high voltage electric wire input lead wire 42 in the tank type lower body 40.

“Effect” According to the manufacturing method of the present invention, the tank-shaped lower body 30
The tank-shaped lower body 40 and the tank-shaped lower body 40 are separately injection-molded, the fixed resistor 56 is inserted into the holder 50, the lower body 30 and the tank-shaped lower body are juxtaposed at regular intervals, and the insulating protrusions for supporting are provided around the periphery. Since the high voltage electric wire input lead wire 42 forming the 42c is arranged in parallel in the recess 30d of the tank-shaped lower main body 30, there is no disconnection or contact failure, and the fixed resistor 56 due to the molding temperature can be protected. There is no change in the value, there is no need to measure the resistance value after molding, and the size is reduced, so that it can be easily mounted on the required equipment with the mounting flanges 30c, 30c.

Moreover, the internal pressure is protected by the molding pressure, the movement of the internal component and the fixed resistor are completely prevented, and an electrically and mechanically stable high voltage connector for a power source can be obtained.

[Brief description of drawings]

The accompanying drawings are drawings showing a high-voltage connector for a power source according to the present invention and a state in which a molding method thereof is carried out. FIG. 1 is a front view of the high-voltage connector for a power source, and FIG. FIG. 3 is a cross-sectional view of a mold for molding a tank-shaped lower main body, FIG. 4 is a cross-sectional view of a mold for molding a tank-shaped upper main body, and FIG. FIG. 6 is a vertical cross-sectional view of the tank-shaped upper main body molded by the mold shown in FIG. 6, FIG. 6 is a tank-shaped lower main body molded by the mold shown in FIG. 3, a fixed resistor holder inserted in the main body, and the surrounding support Longitudinal section, front view, and FIG. 7 of the high-voltage electric wire input lead wire having an insulating protrusion edge are enlarged perspective views of the fixed resistor holder and the high-voltage electric wire input lead wire taken out from the tank-shaped lower main body of FIG. 8 is a sectional view taken along line VIII-VIII of the fixed resistor holder shown in FIG. 7, and FIG. It is an exploded perspective view of the. C: High voltage connector for power supply; I ... Input terminal; 0 ... Output terminal; 10 ... Mold for molding lower body; 12 ... Lower mold; 14 ... Upper mold; 14a ... Insulating property Molten synthetic resin injection hole; 18 ... cavity; 16 ... side mold; 20 ... upper body molding mold; 22 ... lower mold; 24 ... upper mold; 24a ... insulating melt synthesis Resin injection hole; 28 ... Cavity; 30 ... Lower body; 40 ... Upper body; 42 ... High-voltage electric wire input lead wire; 42c ... Insulating protruding edge for bearing; 50 ... Fixed resistor holder; 56 ...... Fixed resistor; 58 ...... Conductive coil spring.

Claims (3)

[Claims] 1. An input lead wire through hole formed in an intermediate portion of one side wall of the body and a convex portion of the side wall, wherein both ends of a bottom plate of the tank body made of an insulating synthetic resin are extended to form a mounting flange. A step of forming a lower body having an input lead wire semi-insertion through hole formed in the above; and a through hole formed at a required position of a top plate of an insulating synthetic resin tank type body having a shape corresponding to the lower body. A cylinder projecting parallel to the top plate from the hole and the through hole, and an input lead wire through hole in the middle part of one side wall formed corresponding to the lower body and the side wall of the side wall. Forming an upper body having an input lead wire half-mounting through hole of a convex portion; partially fitting an input lead wire into the input lead wire half-mounting through hole, and forming an inner end of the input lead wire Guiding the outer end of the recess to the outside of the side wall; The inner end of the line, process and connecting the one end of the high-voltage electric wire to form a support for the insulating protrusion edge; has a small diameter head portion bored leads through holes in the upper center,
A conductive outer cylinder having a large-diameter cylindrical cavity formed in the lower portion thereof, a fixed resistor inserted into the cylindrical cavity of the outer cylinder, and a non-conductive inner cylinder fitted from the lower portion of the outer cylinder. A step of standing up each fixed resistor holder integrated with each other in the concave portion of the lower body at a predetermined interval, and connecting a lower pole needle of each fixed resistor to the other end of the high-voltage electric wire; Conductive coil on the small diameter head of the resistor holder
A step of screwing a spring; the upper body is united with the lower body to be integrated, and the small-diameter head portion of the fixed resistor holder and the conductive coil spring are fitted into the through hole of the outer cylinder. And then partially extending in the cylinder. 2. An input lead wire through hole formed in an intermediate portion of one side wall of the main body and a convex portion of the side wall, by extending both ends of a bottom plate of an insulating synthetic resin tank type main body to form a mounting flange. A lower body having an input lead wire half-mounting through hole formed in; and a partly fitted in the input lead wire through hole, an inner end guided by the recess, and an outer end of the outer wall of the side wall. A high-voltage electric wire connected to the inner end of the input lead wire and having a small diameter head with a lead wire through hole at the center of the upper part; Then
A conductive outer cylinder having a large-diameter cylindrical cavity formed in the lower part thereof, and a fixed resistor inserted into the cylindrical cavity of the outer cylinder, and a non-conductive inner cylinder is fitted from the lower part of the outer cylinder, The lower pole needle of each fixed resistor is connected to each high voltage electric wire, and a conductive coil spring is fitted to the upper pole needle of each fixed resistor so that the upper pole needle of each fixed resistor stands upright at predetermined intervals. An output terminal having a fixed resistor holder arranged and fixed with an insulating synthetic resin; and a through hole formed at a required position of a top plate of the insulating synthetic resin tank type body having a shape corresponding to the lower body. A cylinder that is continuous with the through hole and projects parallel to the top of the top plate, an input lead wire through hole at an intermediate portion of one side wall and a convex portion of the side wall that are also formed corresponding to the lower body. And an upper main body which has an input lead wire half-mounting through hole and is integrated with the lower main body; High voltage connector for power made. 3. The high-voltage connector for a power source according to claim 2, wherein the conductive outer cylinder is brass.