TWI478448B - Electrical connector and manufacture method thereof - Google Patents

Description

Electrical connector and method of manufacturing same

The present invention relates to an electrical connector and a method of fabricating the same, and more particularly to an electrical connector for a video graphics array.

IBM introduced a computer display standard using analog signals in 1987, which is the Video Graphics Array (VGA) standard. Although this standard connector has been developed for many years, display devices with VGA connectors still occupy a considerable proportion for today's display devices. In addition, other names of the VGA connector include a D-sub connector or an RGB connector, which is a connector for transmitting analog video signals. Since almost all desktop and notebook computers have VGA connectors, manufacturers of various display devices often have VGA connectors on computer screens, plasma TVs, LCD TVs or projectors. Users can easily connect to computer equipment.

The conventional VGA connector has three rows of fifteen signal terminals, for example, a VGA female connector has fifteen conductive contacts, and a VGA male connector has fifteen pins. Generally, a VGA connector includes a plastic insulative housing and a metal housing that is wrapped around the periphery of the insulative housing. The insulative housing has a plurality of signal terminals for transmitting image signals, and the metal housing protects the signal terminals in the insulative housing from being affected by radio frequency (RF) and electromagnetic interference (EMI).

However, the above-mentioned metal casing is usually formed by press forming to form a hollowed-out area corresponding to the size of the insulating body, and then the insulating body is tightly combined in the hollowed-out region by using a machine tool or a tool. In this way, the insulating body is not easily separated from the casing, and even if the external force is forcibly separated, the insulating body or the casing is easily damaged. In addition, when the technician combines the insulative housing and the housing, the insulative housing cannot be directly inserted into the hollowed-out region of the housing by both hands.

One aspect of the present invention is an electrical connector.

According to an embodiment of the invention, an electrical connector includes an insulative housing, a signal terminal, and a metal shielding housing. The insulative housing has an abutting portion, a terminal positioning portion extending rearward from the abutting portion, and a through hole penetrating the abutting portion. The signal terminals are respectively disposed in the through holes. The metal shielding case includes a flat plate portion, a bent portion, and an arc structure. The bent portions are respectively connected to the flat plate portion. The bent portion and the flat portion surround the hollow body to receive the insulating body, and the bent portion and the flat portion are respectively engaged with the insulating body. The arcuate structures are respectively connected to the edges of the flat plate portion and the bent portion, thereby forming an opening of the hollow region.

In an embodiment of the invention, each of the bent portions has a first engaging portion, and the abutting portion has a second engaging portion corresponding to the first engaging portion.

In an embodiment of the invention, the first engaging portion and the second engaging portion include a groove or a rib.

In an embodiment of the invention, the end portions of the bent portions respectively have corresponding concave and convex structures for engaging the ends of the bent portions.

In an embodiment of the invention, the metal shielding case further includes a fixing portion, wherein the fixing portion is substantially perpendicularly connected to the flat plate portion and abuts against the insulating body.

In an embodiment of the invention, the geometric size and the position of the signal terminal after the metal shielding shell is engaged with the insulating body conforms to the standard of the video graphic array female.

In the above embodiment of the present invention, the bent portions of the metal shielding case can be engaged with each other by the corresponding concave-convex structure, and the bent portion and the flat plate portion can also pass through the first engaging portion and the third engaging portion. The second shielding portion of the abutting portion and the fourth engaging portion of the terminal positioning portion are not engaged, so that the metal shielding housing is detachably disposed on the insulating body. When the technician combines the insulative housing and the metal shielding housing, the metal shielding housing can be directly engaged or separated from the insulating body by manual means without relying on other machine equipment or tools. In addition, since the arc-shaped structure of the metal shielding shell is respectively connected to the edge of the flat plate portion and the bent portion and forms an opening of the hollow region, the user can smoothly integrate the male connector of a video graphic array with the electrical connector. on.

According to an embodiment of the present invention, a method for manufacturing an electrical connector includes the following steps: Step 1: punching out a flat portion of the metal shielding housing and two bending portions respectively connected to the flat portion; Step 2: Stamping out a plurality of arc-shaped structures respectively connected to the edge of the flat plate portion and the two bent portions; Step 3: bending the two bent portions of the metal shielding shell and the flat plate portion to form a hollow region; step four Forming an insulative housing in an injection manner, having a pair of connecting portions, a terminal positioning portion extending rearward from the mating portion, and a plurality of perforations extending through the mating portion; and step 5: assembling a perforation of the video pattern array signal terminal to the insulative housing; Six: The insulative body assembled with the video pattern array signal terminal is in the hollow area of the metal shielding shell.

In an embodiment of the invention, step one and step two can be completed at one time, and the flat plate portion, the bent portion and the curved structure are punched out.

In an embodiment of the present invention, the step is performed at the end of the two bent portions, and has a corresponding concave-convex structure, and in the third step, the end of the two bent portions is utilized by the concave-convex structure. The parts are snapped together to form a hollowed out area.

In an embodiment of the present invention, the step of punching out at least one fixing portion together, in the third step, bending the fixing portion to be substantially perpendicularly connected to the flat plate portion and abutting the terminal positioning portion .

In summary, the electrical connector with the detachable metal shielding housing not only saves the cost of the equipment or tools during assembly, but also directly uses the manpower to repeatedly engage or disassemble the metal shielding housing on the insulating body. Reduce the chance of damage to the metal shielded housing or the insulative housing.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the novel. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

1 is a perspective view of an electrical connector 100 in accordance with an embodiment of the present invention. FIG. 2 is a perspective view showing another perspective of the electrical connector 100 of FIG. 1. Referring to FIGS. 1 and 2 , the electrical connector 100 includes an insulative housing 110 , a signal terminal 134 , and a metal shielding housing 120 . The insulative housing 110 has an abutting portion 112 , a terminal positioning portion 114 extending rearward from the abutting portion 112 , and a through hole 116 penetrating the abutting portion 112 . Signal terminals 134 are respectively disposed in the through holes 116. The metal shielding housing 120 includes a flat plate portion 122, a bent portion 124, and an arcuate structure 126. The bent portions 124 are respectively connected to the flat plate portion 122. The bent portion 124 and the flat portion 122 surround the hollow region 130 to receive the insulative housing 110 , and the bent portion 124 and the flat portion 122 are respectively engaged with the insulative housing 110 . The curved structures 126 are respectively connected to the edges of the flat plate portion 122 and the bent portion 124, thereby forming an opening of the hollowed region 130. The chamfered design of the curved structure 126 allows the user to smoothly couple the male connector (not shown) of a video graphics array to the electrical connector 100.

FIG. 3 is a developed view of the metal shielding case 120 of FIG. 1. Referring also to FIGS. 1 and 3, the bent portion 124 of the metal shielding housing 120 includes four connected planes 1241/1242/1243/1244, wherein the planes 1241/1242/1243/1244 constituting the bent portion 124 have respectively Curved structure 126. On the other hand, the broken line on the bent portion 124 and the flat plate portion 122 in Fig. 3 means a bendable fold line. The metal shielding housing 120 can optionally include a fixing portion 128. The fixing portion 128 can be substantially perpendicularly connected to the flat portion 122 and abut against the terminal positioning portion 114 of the insulating body 110 after being bent, and has the positioning insulating body 110. The function. In addition, the fixing portion 128 may be fixed to the printed circuit board (not shown) by soldering. All "substantially" in this document means an error in the manufacture or bending.

In the present embodiment, the metal shielding case 120 is an integrally formed flexible metal foil and may contain a metal material of iron, copper or silver. In other embodiments, the bent portion 124 and the fixing portion 128 may be respectively connected to the flat plate portion 122 by welding. In addition, the number of planes and fold lines constituting the bent portion 124 may be determined according to the designer's needs, as long as the ends of the bent portion 124 can be engaged with each other and the flat portion 122 surrounds the hollowed area 130 where the insulating body 110 can be accommodated. can. The insulative housing 110 is an insulator, and the material thereof may include plastic. The abutting portion 112 and the terminal positioning portion 114 may be integrally formed.

It should be understood that in the following description, what has been described in the above embodiments will not be described again, and only the engagement structure between the metal shielding case 120 and the insulative housing 110 will be supplemented.

FIG. 4 is an exploded view of the electrical connector 100 of FIG. 1. FIG. 5 is an exploded view of the electrical connector 100 of FIG. 4 from another perspective. Referring to FIG. 4 and FIG. 5 , the bent portions 124 connected to the two sides of the flat plate portion 122 respectively have a first engaging portion 123 , and the abutting portion 112 of the insulative housing 110 has a second corresponding portion of the first engaging portion 123 . Engagement portion 113. Moreover, the end portions of the bent portion 124 respectively have corresponding concave-convex structures 125/127, so that the ends of the bent portion 124 can be engaged together and the insulating body 110 is received around the hollow region 130 with the insulating body 110. The flat portion 122 of the metal shielding housing 120 has a third engaging portion 129 , and the terminal positioning portion 114 of the insulating body 110 has a fourth engaging portion 115 corresponding to the third engaging portion 129 .

In addition, the terminal positioning portion 114 can also optionally include a positioning slot 132. The positions of the positioning slots 132 respectively correspond to the through holes 116, so that the signal terminals 134 can be positioned in the through holes 116 by the positioning slots 132, respectively. In the present embodiment, the electrical connector 100 is a video graphics Array (VGA) female, so the via 116 and the signal terminal 134 have a total of 15 groups of three rows. On the other hand, the size of the signal terminals 134 may be the same or different, depending on the needs of the designer.

In the following description, what has already been described in the above embodiments will not be described again, and only the technical contents related to the metal shielding case 120 being engaged with the insulative housing 110 will be supplemented.

Specifically, when assembling the electrical connector 100, the technician may first bend the bent portions 124 connected to the two sides of the flat plate portion 122 by the concave-convex structure 125/127 to surround the hollowed out region 130 and bend. The fixing portion 128 is folded substantially perpendicular to the flat plate portion 122. Then, the insulative housing 110 is inserted into the hollow region 130, and the first engaging portion 123 of the bent portion 124 is engaged with the second engaging portion 113 of the abutting portion 112, and the third engaging portion of the flat portion 122 is engaged. The portion 129 is engaged with the fourth engaging portion 115 of the terminal positioning portion 114. Finally, the signal terminal 134 is inserted along the corresponding positioning slot 132 and the end of the signal terminal 134 is inserted into the corresponding through hole 116 to complete the assembly of the electrical connector 100.

However, the manner in which the electrical connector 100 is assembled is not limited to the above. For example, the technician can first insert the signal terminal 134 along the corresponding positioning slot 132 and the end of the signal terminal 134 into the corresponding through hole 116. Next, the bent portions 124 connected to both sides of the flat plate portion 122 are surrounded by the concave-convex structures 125/127 to surround the hollowed-out region 130, and the fixed portion 128 is bent to be substantially perpendicular to the flat plate portion 122. Finally, the insulative housing 110 is inserted into the hollow region 130, and the first engaging portion 123 of the bent portion 124 is engaged with the second engaging portion 113 of the abutting portion 112, and the third engaging portion of the flat portion 122 is engaged. The portion 129 is engaged with the fourth engaging portion 115 of the terminal positioning portion 114, and similarly, the assembly of the electrical connector 100 can be completed.

For another example, the technician can first place the flat portion 122 and the concave-convex structure 125/127 that has not been engaged on the insulative housing 110. Then, the bent portions 124 connected to both sides of the flat plate portion 122 are engaged by the concave-convex structure 125/127, and the first engaging portion 123 of the bent portion 124 is engaged with the second card of the abutting portion 112. The third engaging portion 129 of the engaging portion 113 and the flat portion 122 is engaged with the fourth engaging portion 115 of the terminal positioning portion 114. Finally, the signal terminal 134 is inserted along the corresponding positioning slot 132 to allow the end of the signal terminal 134 to enter the corresponding through hole 116, and the assembly of the electrical connector 100 can still be completed.

The assembly manner of the metal shielding case 120 is related to the structures of the first engaging portion 123, the second engaging portion 113, the concave-convex structure 125/127, the third engaging portion 129, and the fourth engaging portion 115, and can be designed according to the design. The needs have been adjusted. In addition, the first engaging portion 123, the second engaging portion 113, the third engaging portion 129 and the fourth engaging portion 115 may include grooves or ribs, and are located on the card of the insulating body 110 and the metal shielding shell 120. The position and number of the joints can be varied according to the designer's needs, as long as the insulating body 110 can be firmly engaged with the metal shielding shell 120. On the other hand, the geometry of the metal shielding housing 120 and the insulative housing 110 and the position of the signal terminal 134 are required to conform to the standard of the Video Graphics Array (VGA) female.

Compared with the prior art, the above embodiment of the present invention has the following advantages:

(1) When the technician combines the insulative housing and the metal shielding housing, the metal shielding housing can be directly engaged or separated from the insulating body by manual means without relying on other machine equipment or tools.

(2) The arc-shaped structure of the metal shielding shell is respectively connected to the edge of the flat plate portion and the bent portion and forms an opening of the hollow region, so that the user can smoothly integrate the male connector of a video graphic array with the electrical connector. on.

(3) Since the electrical connector can directly engage or disassemble the metal shielding case on the insulating body by using human power, the probability of damage of the metal shielding case or the insulating body can be reduced.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100. . . Electrical connector

110. . . Insulating body

112. . . Docking

113. . . Second engagement

114. . . Terminal positioning part

115. . . Fourth engagement

116. . . perforation

120. . . Metal shielded housing

122. . . Flat section

123. . . First engagement

124. . . Bending section

1241. . . flat

1242. . . flat

1243. . . flat

1244. . . flat

125. . . Concave structure

126. . . Curved structure

127. . . Concave structure

128. . . Fixed part

129. . . Third engagement

130. . . Hollow area

132. . . Positioning slot

134. . . Signal terminal

1 is a perspective view of an electrical connector in accordance with an embodiment of the present invention.

Fig. 2 is a perspective view showing another view of the electrical connector of Fig. 1.

Fig. 3 is a development view of the metal shielding case of Fig. 1.

Figure 4 is an exploded view of the electrical connector of Figure 1.

Figure 5 is an exploded view of the electrical connector of Figure 4 from another perspective.

100. . . Electrical connector

110. . . Insulating body

112. . . Docking

113. . . Second engagement

114. . . Terminal positioning part

115. . . Fourth engagement

116. . . perforation

120. . . Metal shielded housing

122. . . Flat section

123. . . First engagement

124. . . Bending section

125. . . Concave structure

126. . . Curved structure

127. . . Concave structure

128. . . Fixed part

129. . . Third engagement

130. . . Hollow area

132. . . Positioning slot

134. . . Signal terminal

Claims (10)

An electrical connector includes: an insulative housing having a pair of connecting portions, a terminal positioning portion extending rearward from the mating portion, and a plurality of through holes extending through the mating portion; a plurality of video graphic array signal terminals respectively disposed on the plurality of video connectors And a metal shielding case, comprising: a flat plate portion; two bent portions respectively connected to the flat plate portion, wherein the two bent portions and the flat plate portion surround a hollow region for receiving the insulating body, And the two bent portions and the flat plate portion are respectively engaged with the insulating body; and a plurality of curved structures are respectively connected to the edge of the flat plate portion and the two bent portions, thereby forming an opening of the hollow region. The electrical connector of claim 1, wherein the two bent portions respectively have a first engaging portion, and the abutting portion has two second engaging portions corresponding to the two first engaging portions. The electrical connector of claim 2, wherein the two first engaging portions and the second second engaging portions comprise grooves or ribs. The electrical connector of claim 1, wherein the ends of the two bent portions respectively have a corresponding concave-convex structure for engaging the ends of the two bent portions. The electrical connector of claim 1, wherein the metal shielding housing further comprises: at least one fixing portion that is substantially perpendicularly connected to the flat plate portion and abuts the terminal positioning portion. The electrical connector of claim 1, wherein the geometrical dimensions of the metal shielding housing after engaging the insulating body and the positions of the signal terminals conform to the standard of the video graphics array female. A method for manufacturing an electrical connector, the method comprising the following steps: Step 1: punching out a flat portion of the metal shielding shell and two bending portions respectively connected to the flat portion; Step 2: punching out the connecting plate And a plurality of curved structures on the edge of the two bent portions; Step 3: bending the two bent portions and the flat portion of the metal shielding shell to form a hollow region; Step 4: forming the insulating body by injection a pair of joints, a terminal positioning portion extending backward from the mating portion and a plurality of perforations extending through the mating portion; step 5: assembling a perforation of the video pattern array signal terminal to the insulative housing; and step 6: assembling a video graphics array The insulating body of the signal terminal is in a hollow area of the metal shielding case. The method of manufacturing the electrical connector of claim 7, wherein the first step and the second step are performed at one time, and the flat portion, the bent portion and the curved structure are punched out. The method of manufacturing the electrical connector of claim 7, wherein the step of punching out a corresponding concave and convex structure at the end of the two bent portions is performed, and in the third step, the concave and convex structure is used to The ends of the bends are snapped together to form a hollowed out area. The method of manufacturing the electrical connector of claim 7, wherein the step of punching out at least one fixing portion, in the third step, bending the fixing portion to be substantially perpendicularly connected to the flat portion and abutting The terminal positioning portion.