TWI505568B - The forming method of power connector - Google Patents

Description

Power connector forming method

The invention relates to a method for forming a power connector, in particular to passing a large-diameter round bar through cold drawing and drawing and stamping a plurality of terminals, and embedding a plurality of terminals in a strip for processing and shaping, and each terminal After being separated from the material belt, the electroplating process is performed, and then the molding die is used to inject and form an insulating seat to achieve the purpose of increasing strength, reducing cost, complete plating and processing.

Press, power outlets are widely used in electrical products, such as portable audio or audio projectors (such as VCD, DVD, etc.), and information products, such as computers, notebook computers, mobile phones, etc. The power cable socket and the mains socket of the product are respectively inserted into the line, so that the product can obtain power for the user to operate.

The indispensable component inside the power socket is at least one metal plug. The traditional metal plug can be divided into two types: hollow and solid. As shown in Figure 12, the hollow metal terminal is tied to a metal plate, such as a copper plate. The sheet is formed into a shape, and then one end is crimped into a cylindrical contact portion A, and the other end is extended with a flat terminal portion B. The contact portion A and the terminal portion B are integrally formed instead of the riveted connection. The missing of the hollow metal terminal is that, due to its crimp forming, the control of the force during the winding process is very important. If the force is too large or the force is insufficient, the two sides cannot be tightly engaged at the joint position. It is easy to cause warpage or deformation of the sheet, so that the defect rate of the product is improved, and the structural strength of the hollow metal terminal is poor, and when the plug is connected with the opposite type, the metal terminal is easily deformed, twisted or broken, and the sheet is damaged. The crimped front edge of the pin will form a seam and seriously affect the appearance of the product.

In view of the absence of the aforementioned hollow metal terminal, the related art proposes a power socket having a solid metal terminal. As shown in the thirteenth figure, the seat C of the power socket has a solid terminal D and a terminal E, and the solid terminal D is It is disposed in the seat body C. The solid terminal D is provided with a retaining ring D1 that abuts against the front side of the seat body C. The solid terminal D extends to the rear side of the seat body C and is provided with a connecting end D2. The terminal E is solid and solid. The connection end D2 of the terminal D is riveted, and the solid terminal D is fixed in the seat body C. Since the solid terminal D is made by turning, the retaining ring D1 has a larger outer diameter than the solid terminal D, so the metal material is It needs to be at least equal to the outer diameter of the retaining ring D1 to be turned into a solid terminal D and a retaining ring D1. The scrap generated by turning accounts for about 40% of the whole, which causes material waste and waste recycling. In fact, the manufacturing cost of the core terminal D will be greatly improved, and the riveting is required, which not only increases the riveting equipment and processing cost, but also if the connection end D2 and the terminal E of the solid terminal D are insufficient or subject to riveting strength. External force damage makes the riveting position loose , Will lead to high temperatures, poor contact, or generate a spark off the situation, and seriously affect the safe use of the product.

However, the metal plugs inside the current power connector, whether hollow or solid, must consume a lot of time in the forming process during the manufacturing process. The structural strength of the hollow terminal is poor, easy to bend and deform. Or the fracture, the forming winding operation is quite troublesome, and the defect rate of the product is easy to be improved; the solid terminal must perform time-consuming and labor-intensive turning processing, and many processing wastes are difficult to handle, resulting in waste of resources.

Therefore, how to solve the problems and defects in the manufacture and processing of the terminals of the conventional power connector is the direction that the relevant manufacturers engaged in the industry want to study and improve.

Therefore, in view of the above-mentioned problems and deficiencies, the inventors have collected relevant information, and through multi-party evaluation and consideration, and through years of experience accumulated in the industry, through continuous trial and modification, the design of such available cold drawing After the forming and processing of the plurality of terminals, the invention is patented by the method of forming a plurality of terminals by processing and shaping the plurality of terminals, and then separating and performing electroplating processing, and then forming a power connector of the insulating seat on the outside of the two terminals.

The main object of the present invention is that the large-diameter round bar material is processed by cold drawing and drawing twice or more, and the butting portion and the connecting portion are separately formed at one end and the rear at appropriate positions, and the thin circle is formed. The rod materials are respectively embedded in the positioning card slots of the terminal strips, and then cut into terminals of a predetermined length, and the plurality of terminals formed by the repetitive process of the above steps are respectively embedded in the positioning card slots of the terminal strips. The plurality of terminals embedded in the strip are first processed and shaped, and then electroplated after separation, and then at least two or more mold cavities are formed in the mold, and at least two or two are formed by one plastic injection operation. More than one insulating seat not only generates a large amount of waste in the manufacturing process of the plurality of terminals, but also increases the structural strength of the plurality of terminals and reduces the manufacturing cost, and accelerates the manufacturing speed to achieve the purpose of shortening the working hours and improving the working efficiency.

The secondary object of the present invention is that the plurality of terminals are embedded in the strip, first processed and shaped, and after the terminals are separated from the strip, the strips are plated for all the terminals. The plating layer can be generated as a whole of the terminal, and the plating layer is not cracked or peeled off by external force, and the material is not hindered by the plating process, thereby achieving the purpose of complete plating and processing.

Another object of the present invention is that the plurality of terminals form a shoulder portion on the two sides of the joint portion of the connecting portion and the mating portion, and when the two adjacent terminals are combined with the molding die to be overmolded with the insulating seat, each terminal is embedded by the shoulder portion. The card is fixed in the insulating seat, and when the insulating seat is assembled on the insulating body, the plurality of latching portions of the insulating seat are relatively fixed to the plurality of card slots of the insulating body and inserted into the slot, so that the insulating seat is not displaced rearward and insulated The plurality of stop grooves of the seat resist the stop block of the insertion groove, so that the insulation seat is not displaced forward, thereby forming the positioning in the front-rear direction, so that the preset power plug is not easily inserted into the power connector. Loose or detached, which extends the life of the power connector.

In order to achieve the above objects and effects, the technical means, the structure, and the method of the present invention are described in detail. The features and functions of the preferred embodiments of the present invention are described in detail below.

Please refer to the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth drawings, which are the flow chart of the invention (1), (2), and the stereoscopic appearance of the terminal cold drawing and drawing process. The three-dimensional exploded view of the drawing, the tape and the terminal, the three-dimensional appearance of the terminal after shaping, the three-dimensional appearance of the molding die, the three-dimensional appearance before the assembly of the insulating body, the assembled three-dimensional appearance, and the top view of the power connector The figure and the side cross-sectional view, as clearly shown in the figure, show that the power connector molding step of the present invention is:

(100) The large-diameter terminal round bar material 1 is subjected to secondary or secondary cold drawing stretching processing through a plurality of reduced-size apertures 20 of a plurality of cold drawing and drawing dies 2, and is processed into a thin round rod material. 11.

(101) The thin rod material 11 after the cold drawing and drawing process is further formed into abutting portion 32 by press working.

(102) The predetermined length of the thin round bar material 11 is press-machined at a suitable position at a predetermined length rearward to be molded into the connecting portion 31.

(103) The predetermined length of the thin round bar material 11 is embedded in the positioning slot 40 of the tape 4 at a predetermined appropriate position of the rear connecting portion 31, and the thin round bar material 11 is cut into the terminal 3 of a predetermined length. .

(104) The plurality of molding terminals 3 are respectively embedded in the positioning slots 40 of the tape 4 one by one.

(105) The plurality of terminals 3 embedded in the tape 4 are processed and shaped.

(106) Each terminal 3 is separated from the strip 4.

(107) Electroplating processing is performed for all the terminals 3.

(108) The abutting portion 32 of the two adjacent terminals 3 and a part of the connecting portion 31 are embedded in the cavity 50 of the molding die 5, so that the insulating seat 6 can be overmolded by the molding die 5, and the insulating seat is formed by the insulating seat. 6 is wrapped on the outside of the two terminals 3.

(109) After the injection processing operation is completed, the molding die 5 is removed, and the two terminals 3 and the insulating seat 6 are installed in the insertion groove 71 of the insulative housing 7, and the insulating seat 6 is relatively locked by the surface plurality of latching portions 61. In the plurality of slots 711 of the slot 71, the stop slots 62 of the insulating seat 6 are relatively abutted against the stops 712 of the slot 71 to form a position.

(110) Formed as a power connector.

The terminal 3 side of the power connector of the present invention is formed into a flat connecting portion 31 by press working, and can be electrically connected to an external predetermined wire, and the connecting portion 31 can be welded, clipped or double straight. Plug-in type (DIP), etc., various types of electrical connection with the preset wire; and the other side of the terminal 3 is a butt-shaped abutting portion 32 which is formed into a conical rod by press working, and protrudes outward from the two sides of the connecting portion 31 A shoulder portion 311 is formed.

Furthermore, the strip 4 is U-shaped, and a plurality of opposite positioning slots 40 are formed on the upright two side walls of the U-shaped strip 4, and the plurality of terminals 3 positioned on the positioning slots 40 of the strip 4 are First, processing and shaping are performed, and each terminal 3 is separated from the strip 4 and then subjected to all, partial or partial electroplating processing (may also be immersion plating, loose needle rolling or brush plating), and then respectively Adjacent terminals 3 are placed in groups of two or more mold cavities 50 inside the molding die 5. (The present invention uses two cavities 50 as an embodiment, but does not limit the number of cavities 50, the molding die 5 or one, three, four, five, six or a plurality of mold cavities 50, etc. may be provided in the mold 5, and the molding die 5 is separately formed with insulation in the plastic injection overmolding manner on the outside of each adjacent terminal 3. The seat 6 can be respectively embedded in the insulating seat 6 through the shoulder portions 311 of the two adjacent terminals 3 to form a positioning and is not easy to loosen or fall off, and the upper surface of the two side walls or the two side walls of the insulating seat 6 are respectively protruded. One or more latching portions 61, the latching portion 61 is gradually formed on the front side toward the rear to form a guiding slope 611, and the insulating seat 6 Each corner of the sidewall and then were provided with concave grooves 62 stop.

The insulative housing 7 is separately manufactured, and the insulative housing 7 is recessed in front to form a docking space 70. The rear of the insulative housing 7 is a receiving slot 71 through which the communicating docking space 70 is inserted, and is placed on the two sides or both sides of the slot 71. One or more slots 711 are respectively recessed in the inner wall surface, and the corners of the front of the insertion slot 71 are connected with the stoppers 712 respectively, and the insulating seats 6 together with the two terminals 3 The locking portion 61 is inserted into the insertion groove 71 of the insulative housing 7 by the rear side, and the locking portion 61 is biased against the side wall surface of the insertion groove 71 and guides the insulating seat 6 into the insertion groove 71, and the insulating seat 6 is inserted into the insertion groove 71. After the continuous insertion, each of the latching portions 61 relatively resists the rear wall surface of each of the slots 711 by the rear side vertical stop surface 612 to stop the formation of the buckle, and at the same time, each of the stoppers 712 of the slot 71 is inserted. An insulating stop is formed in each of the stopping grooves 62 in front of the insulating seat 6. The insulating seat 6 is conveniently positioned to be stopped by the stop before and after the insulating seat 6 is formed, and the abutting portion 32 of the two terminals 3 of each insulating seat 6 is extended. In the docking space 70 in front of the insulative housing 7, the connecting portion 31 on the other side extends beyond the rear of the insulative housing 7. Outside.

By utilizing the structural features of the plurality of positioning slots 40 of the strip 4, the plurality of terminals 3 can be respectively embedded and positioned, and the plurality of terminals 3 can be assembled on the strip 4 by means of automated, semi-automatic or manual equipment, and the materials are mixed. The belt 4 controls the moving position and distance of the plurality of terminals 3 for processing and shaping (for example, conical shaping of the butting portion 32, change of the shape of the connecting portion 31, or forming a bent portion 312 having a vertical bending shape) After the respective terminals 3 are separated from the strip 4 and subjected to electroplating processing, the plastic injection processing process of the molding die 5 is matched once, and at least two or more insulating seats 6 can be formed, and the plurality of insulating seats 6 can be formed. And the terminal 3 is assembled in the insulative body 7, which can effectively improve the efficiency of the processing process, shorten the manufacturing man-hours to increase the output, and improve the product yield; and the insulating seat 6 accommodates the docking space 60 of the two terminals 3 butt portion 32. (A preferred embodiment of the present invention, the socket type power connector) can be electrically connected to a predetermined type of power plug of a relative type, because each terminal 3 is embedded and fixed to the insulating seat 6 by the shoulder portion 311. Inner and insulated seat 6 When the latching portion 61 and the stopping slot 62 are actually positioned in the insulative housing 7, the power connector is electrically connected to the externally opposed type of the predetermined power plug, and does not affect the fixing of each terminal 3 to the insulating seat 6. The structure, the terminals 3 are positioned in the insulating seat 6 and are not easy to loosen or fall off, which can effectively extend the service life of the power connector.

And the above steps (101)-(103) can be repeatedly performed to make a preset number of multiple terminals 3 (for example, 50, 100 or 150 or 200 preset numbers of plural terminals 3), After the subsequent steps (104) to (109) are performed, the plurality of terminals 3 can be formed into a power connector by the molding die 5.

Please refer to the first, second, third, fourth, fifth, sixth and eleventh drawings for the flow chart (1), (2) of the present invention, the three-dimensional appearance drawing of the terminal cold drawing and drawing, the material tape and The three-dimensional exploded view of the terminal, the three-dimensional appearance of the terminal after shaping, the three-dimensional appearance of the molding die, and the side cross-sectional view of another embodiment, as can be clearly seen from the figure, the processing steps of the present invention are The large round bar material 1 of a large diameter is formed by cold drawing and drawing, and the thin round bar material 11 of a smaller diameter is formed by cold drawing and drawing, and the side of the thin round bar material 11 is formed by press working. The conical rod-shaped abutting portion 32 is at a suitable position at a predetermined length rearward, and is further press-formed into a flat connecting portion 31, and then the thin round rod material 11 is cut into a terminal 3 of an appropriate length (a power source can be formed according to the shape) The size of the connector, the length dimension of the terminal 3 is adjusted, and the length dimension of the terminal 3 is not limited in the present invention).

The terminal 3 side connecting portion 31 can be stamped and formed into a flat shape for externally connecting the wire to be welded and combined; the connecting portion 31 can also be stamped into an I shape, a U shape or a T shape. Type, the side of the I-shaped or T-shaped connecting portion 31 is coupled to the abutting portion 32, and the other side of the connecting portion 31 is stamped into a U-shaped or needle-shaped shape, and the U-shaped connecting portion 31 covers the metal wire end of the external preset wire. Forming a clip-type connection, bonding, or the pin-type connecting portion 31 is connected and combined with a preset wire in a DIP, and the connecting portion 31 of the terminal 3 is formed into a different type, which has only an external The function of connecting and combining the wires may be preset, and the connecting portion 31 may be connected to the preset wire after the insulating seat 6 is formed, before the molding or after the insulating seat 6 is assembled to the insulating body 7, and thus the patent scope of the invention is not limited thereby. If other modifications and equivalent structural changes are used, they should be included in the scope of the patent of the present invention and combined with Chen Ming.

In addition, three terminals 3 (not shown) adjacent to each other in a triangular shape may be used to respectively penetrate the mold holes 50 of the molding die 5 with the three abutting portions 32, respectively, and the mold of the molding die 5 may be utilized. The hole 50 is formed by inserting an insulating seat 6 through the plastic injection outside the three butting portions 31, and then assembling the two insulating terminals 6 with the two terminals 3 in the insulating body 7, so as to form another type of power connector of different specifications. And the connecting portions 31 on the other side of the three terminals 3 of the formed power connector extend out of the outside of the insulating body 51, respectively.

Alternatively, a portion of the abutting portion 32 and the connecting portion 31 of the two adjacent terminals 3 may be embedded in the cavity 50 of the molding die 5, and the insulating seat 6 having the mating space 60 may be directly molded by the molding die 5, In this way, the assembly operation of the step (109) can be saved; and the connecting portion 31 can also embed the abutting portion 32 of the two adjacent terminals 3 and a part of the connecting portion 31 after connecting the metal wire ends of the external preset wires. The insulating cover 6 is formed by injection molding in the cavity 50 of the molding die 5, which is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention.

The molded power connector of the present invention can be assembled on a preset electronic/electrical product, and can be electrically connected to an externally opposed type of predetermined power plug, and the preset electronic/electrical product is provided through the power connector. The power.

In addition, please refer to the first, second, fourth and fifth figures, which are the three-dimensional exploded view of the flow chart (1), (2), the strip and the terminal of the invention, and the stereoscopic appearance of the terminal after shaping. As can be clearly seen from the figure, the terminal 3 can be formed into a vertically bent bent portion 312 by a connecting portion 31 adjacent to the shoulder portion 311, or a further bent portion. Further, the connecting portion 31 is formed with another bent portion 312 which is bent and inclined, and the terminal 3 is bent. Since the two bent portions 312 are exposed outside the insulating seat 6, the step (104) is required. After the plurality of terminals 3 are embedded in the strip 4, the processing is performed, and after the terminals 3 are separated from the strip 4, electroplating is performed for all the terminals 3, since the strips 4 are detached from the strips 4 The electroplating process is performed, so that the terminal 3 does not contact the strip 4 to form a plating layer to form a missing copper, and the electroplating process is performed after the terminal 3 is shaped and bent and the strip 4 is detached. Will cause the plating layer to crack or peel off during processing and shaping, and further, the terminal 3 is bent. After the tape 4 is wound, the connecting portions 31 are mutually abutted, so that the tape 4 cannot be used for the plating process. However, after the plurality of terminals 3 are separated from the tape 4, the plate can be smoothly plated by the loose needle bar plating method. In order to achieve complete plating and processing convenience.

Therefore, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. The power connector manufacturing step of the present invention is to use a large diameter round bar material 1 by cold drawing. The stretching die 2 is processed by cold drawing drawing of two or more times to form a thin rod material 11 of a smaller size, and one end is press-formed into the butting portion 32, and the rear position is appropriately press-formed and connected to the portion 31, and is cut and cut. After cutting into the terminal 3 of the preset length, the plurality of terminals 3 can be processed, and the plurality of terminals 3 are embedded one by one in the positioning card slot 40 of the tape 4, so that the plurality of terminals 3 embedded in the tape 4 can be processed. After shaping, the terminals 3 are separated from the strip 4 and then electroplated. Then, the insulating molds 6 can be formed by using the molding die 5 to form an insulating seat 6 outside the two adjacent terminals 3, and then insulating the plurality of terminals. The seat 6 and the terminal 3 are assembled on the insulative body 7, so that the processing can be fast, time-saving and labor-saving, and the working efficiency can be improved, the manufacturing cost can be reduced, and the plurality of terminals 3 can be subjected to cold drawing and drawing processing. Not only can reduce processing waste, The structural strength of the plurality of terminals 3 can be strengthened, and the insulating seat 6 made of the plastic injection molding of the plurality of terminals 3 and the molding die 5 can be assembled to the insulating body 7 to quickly form the power connector, so that the foregoing effects can be achieved. The structure and the device are all covered by the present invention. Such simple modifications and equivalent structural changes are all included in the scope of the patent of the present invention and are combined with Chen Ming.

The above-described molding method of the power connector of the present invention can have the following advantages when it is actually used, such as:

(1) The large-diameter round bar material 1 is formed into a thin round bar material 11 by cold drawing and drawing die 2, and is formed into a thin round bar material 11 and press-formed at one end to form a butt portion 32, and appropriate rearward At the position, the connecting portion 31 is stamped and formed, and the thin round rod materials 11 are respectively embedded in the positioning slots 40 of the strip 4, and then cut into the terminals 3 of a predetermined length, and then formed by repeating the above steps. The plurality of terminals 3 are respectively embedded in the positioning slots 40 of the terminal strip 4, and the manufacturing process of the plurality of terminals 3 does not generate a large amount of waste, increases the structural strength of the plurality of terminals 3, and can reduce the manufacturing cost.

(2) After the plurality of terminals 3 are embedded in the strip 4, the processing is first performed, and after the terminals 3 are separated from the strip 4, electroplating is performed on all the terminals 3, thereby avoiding the contact of the terminals 3. The strip 4 cannot form a plating layer to form bare copper, and the processing and shaping shape causes the plating layer to be cracked or peeled off, and the plurality of terminals 3 can be smoothly plated by the loose needle barrel plating method after the strip 4 is detached. In turn, the purpose of complete electroplating and processing can be achieved.

(3) The joint portion 31 of the plurality of terminals 3 and the abutting portion 32 are coupled to each other, and the shoulder portion 311 is formed on both sides of the joint portion 31, and the two adjacent terminals 3 are molded by the molding die 5 to be overmolded with the insulating seat 6, and each terminal 3, the shoulder portion 311 is embedded and fixed in the insulating seat 6, and when the insulating seat 6 is assembled to the insulating body 7, the insulating seat 6 is relatively locked or resisted by the plurality of locking portions 61 and the stopping groove 62. The plurality of card slots 711 and the stop blocks 712 of the main body 7 are inserted into the slot 71 to form a front-rear direction, which is not easy to loose or fall off, and can prolong the service life of the power connector.

(4) The plurality of terminals 3 are respectively positioned in the positioning slots 40 of the strip 4, and the plurality of terminals 3 can be assembled on the strip 4 by using automatic or manual equipment, and the strip 4 is matched to control the moving position of the plurality of terminals 3. Distance and distance for processing and shaping can speed up the manufacturing process, shorten working hours and improve work efficiency.

Therefore, the present invention is mainly designed for the manufacturing process of the power connector, which is to form a large-diameter round bar material into a terminal by cold drawing and press forming, and then position the plurality of terminals in each positioning card slot of the tape, first The plurality of terminals are processed and shaped, and after each terminal is separated from the material strip, electroplating is performed, and then a plastic injection processing operation is performed with the molding die to form a plurality of insulating seats, and then the insulating seat and the terminal are assembled to the insulating body, and the system is quickly manufactured. As a power connector, it can shorten the processing, improve the working efficiency, reduce the manufacturing cost, increase the structural strength of the terminal fixed on the insulating body as the main protection focus, reduce the waste generated by the processing process, and the terminal can be stably fixed in the insulation. The body is not easy to loose or fall off, but only has the advantage of long service life of the power connection device, and the plurality of terminals are embedded in the strip to be processed and shaped, and the terminals are separated from the strip and then electroplated. The electroplating can be completed without peeling off and the processing is convenient, but the above description is only the preferred embodiment of the present invention, and therefore Limitation of scope of the present invention, it is covered the use of the present invention, the specification and drawings simple modifications and equivalent structures content changes whom shall be included within the scope of patent empathy present invention, together to Chen.

In summary, the method for forming the above-mentioned power connector of the present invention can achieve its efficacy and purpose during implementation and manufacture. Therefore, the present invention is an excellent research and development, and is an application for conforming to the invention patent.提出 Submit an application in accordance with the law, and hope that the trial committee will grant this case as soon as possible to protect the inventor's hard work in research and development, and create a report. If there is any doubt in the trial committee, please do not hesitate to give instructions to the inventor, and the inventor will try his best to cooperate.

1. . . Terminal round bar material

11. . . Thin round bar material

2. . . Cold drawing die

20. . . Aperture

3. . . Terminal

31. . . Connection

311. . . Shoulder

312. . . Bending section

32. . . Docking

33. . . Plating

4. . . Strip

40. . . Positioning card slot

5. . . Molding mold

50. . . Cavity

6. . . Insulation seat

60. . . Docking space

61. . . Buckle

611. . . Bevel

612. . . Stop face

62. . . Stop groove

7. . . Insulating body

70. . . Docking space

71. . . Placement slot

711. . . Card slot

712. . . Stop block

A. . . Contact

B. . . Terminal part

C. . . Seat

D. . . Solid terminal

D1. . . Stop ring

D2. . . Connection end

E. . . Terminal

The first figure is a flow chart (1) of the present invention.

The second figure is a flow chart (2) of the present invention.

The third figure is a three-dimensional appearance of the terminal cold drawing and drawing process of the present invention.

The fourth figure is an exploded perspective view of the strip and the terminal of the present invention.

The fifth figure is a three-dimensional appearance of the terminal after shaping and shaping the invention.

Figure 6 is a perspective view of the molding die of the present invention.

Figure 7 is a perspective view of the insulative body of the present invention before assembly.

The eighth figure is a three-dimensional appearance of the insulative body of the present invention after assembly.

Figure 9 is a top cross-sectional view of the power connector of the present invention.

Figure 10 is a side cross-sectional view of the power connector of the present invention.

Figure 11 is a side cross-sectional view showing another embodiment of the present invention.

Figure 12 is a three-dimensional appearance of the terminal of the conventional power connector.

Figure 13 is a side cross-sectional view of a conventional power connector.

Claims (14)

A method for molding a power connector, wherein the step of forming the power connector is: (a01) subjecting a large-diameter terminal round bar material to secondary or secondary cold drawing processing, and forming into a thin round bar material. (a02) one end of the predetermined length of the thin rod material is press-formed into an abutting portion; (a03) a predetermined position behind the butting portion of the predetermined length of the thin round rod material, and then formed into a joint portion by press working; (a04) will be thin The round rod material is embedded in each positioning card slot of the strip and then cut into terminals of a predetermined length; (a05) the plurality of terminals processed and formed are respectively embedded in the positioning card slots of the terminal material; (a06) The plurality of terminals embedded in the strip are processed and shaped; (a07) the terminals are separated from the strip; (a08) electroplating is performed on all the terminals; (a09) the adjacent terminals are partially embedded in the mold of the forming mold In the hole, an insulating seat is formed on the outside of the two terminals by injection molding using a molding die. The method for molding a power connector according to claim 1, wherein the terminal round bar material is made of copper or copper alloy or metal. The method for molding a power connector according to claim 1, wherein the predetermined length of the thin rod material is press-formed at one end into a conical rod-shaped abutting portion, and the side combined with the butting portion is press-formed into a flat plate shape I. The connecting portion of the shape or the T shape, and the abutting portion on the other side is formed into a U shape or a needle shape for electrically connecting the welding type, the wire clamping type or the double in-line type (DIP type) to the external preset wire. The method of forming a power connector according to claim 3, wherein a joint of the one side connecting portion and the other side abutting portion is press-formed with a shoulder protruding from the opposite sides of the connecting portion unit. The method for molding a power connector according to claim 1, wherein the steps (a02) to (a04) are repeatedly performed, and after the plurality of predetermined number of terminals are formed, the steps (a05) to (a09) are performed. step. The method of forming a power connector according to the first aspect of the invention, wherein the plurality of terminals are electrically connected to a predetermined power line at the connecting portion, and then partially recessed into the cavity of the molding die by abutting portions of two adjacent terminals. Inside, plastic injection molding process is carried out. The method of forming a power connector according to claim 1, wherein the strip has a U shape, and a plurality of opposite positioning slots are respectively formed on the two upright sidewalls of the U-shaped strip. The method of forming a power connector according to claim 1, wherein the adjacent terminals respectively extend a triangular-shaped abutting portion for the three terminal abutting portions stacked in a triangular shape, respectively extending into the forming The inside of the mold is plastically molded to form a cavity of the insulating seat. The method of forming a power connector according to the first aspect of the invention, wherein, when the two adjacent terminals are assembled to the insulative housing together with the insulating seat, the insulating seat and the two terminals thereof are inserted into the insertion groove of the insulating body from the rear, the two phases The abutting portion of the adjacent terminal extends into the abutting space of the insulative housing and communicates with the slot, and the outer insulating body forms a docking space, and the connecting portion on the other side of the adjacent terminal extends out of the outer side of the insulating body. The method for molding a power connector according to claim 1, wherein the step (a09) is performed by using a molding die to form an insulating seat on the outside of the two terminals, removing the molding die, and mounting the two terminals and the insulating seat. The locking portions on the surface of the insulating seat are oppositely fixed to the respective card slots of the insulating body into the slots. The method of forming a power connector according to claim 10, wherein the insulating seat and the two terminals are inserted into the slot of the insulative housing from the rear, and the front side of the latching portion is gradually formed toward the rear. When the side wall surface of the insertion groove is guided and assembled, and the buckle portion is relatively locked to each of the card slots, the buckle portion and the rear vertical stop surface abut against the rear wall surfaces of the respective card slots. The method of forming a power connector according to claim 11, wherein the upper surface of the two side walls or the two side walls of the insulating seat protrudes one or more buckle portions respectively, and the buckle portion is gradually formed on the front side A guide bevel is formed, and a stop groove is respectively recessed at each corner of the front side wall of the insulating seat, and each of the corners of the insulative housing is convexly provided with a stop block that abuts against the stop groove. The method of forming a power connector according to claim 11, wherein when the two adjacent terminals are assembled to the insulative housing together with the insulating seat, the insulating seat and the two terminals are inserted into the slot of the insulating body from the rear, the two phases The abutting portion of the adjacent terminal extends into the abutting space of the insulative housing and communicates with the slot, and the outer insulating body forms a docking space, and the connecting portion on the other side of the adjacent terminal extends out of the outer side of the insulating body. The method of forming a power connector according to claim 1, wherein the step (a09) is performed by using a molding die to form an insulating seat on the outside of the two terminals, and then removing the molding die, that is, forming the power connector.