TWI385870B - Improved shell structure of an electrical connector and a method for manufacturing the same - Google Patents

Description

Structural improvement of electrical connector housing and manufacturing method thereof

The present invention discloses an improvement in the structure of an electrical connector housing and a method of manufacturing the same, and more particularly, an electrical connector housing includes at least one elongated solder leg and achieves the effect of extending the soldering foot by a specific method.

According to the vigorous development of audio-visual related industries and technological advancement, not only DVDs and Blu-ray discs and their players have been widely used, but also high-definition projectors such as LCD screens and plasma TVs have become common devices in the home. . However, with the increasing precision of the above-mentioned multimedia audio-visual equipment, manufacturers have increased the capacity of audio-visual materials, so that their quality, fineness, color saturation and channel can provide better audio-visual effects. In addition, the LCD screen, the plasma TV and other devices are used for reading by digital signals. In order to replace the old D-SUB interface using analog signal transmission, the inventors have developed DVI (Digital Visual Interface) digital video. Interface, the DVI interface is used to make the image data do not need to be analogized and digitally converted multiple times, and the digital data is not easy to introduce interference signals during the transmission process, which not only ensures the integrity of the data, but also achieves a better playback effect.

However, with the popularity of home theaters, most of the homes are equipped with multiple audio and video playback devices such as audio, speakers, CD players and TVs. The audio and video devices must be connected by transmission lines to achieve signal or data transmission, such as TV. In addition to the image transmission line, an additional audio transmission line is required. Too many transmission lines will cause problems for the user, which not only has the disadvantages of complicated insertion, easy winding and knotting, but also takes up a large space. In order to enable the inventors to develop a solution to this problem, an HDMI (High Definition Multimedia Interface) high-resolution multimedia digital transmission interface has been developed.

The HDMI interface not only has High Definition Digital content Copy Protection with the DVI interface during transmission, but the transmitted image data does not need to be compressed, and there is no problem of image distortion, and the transmission rate can be further improved. It achieves 10.2Gb/s and combines eight-channel digital audio signal transmission function. It can support all TV and computer image formats with HDMI interface, which can achieve better transmission effect and simplify transmission line.

As can be seen from the above information, the HDMI interface must be one of the major trends in the future audio-visual industry. Therefore, one of the HDMI connectors needs to have a strong structure to meet the needs of high-speed digital transmission. The connector of the prior art is configured to cooperate with a printed circuit board (PCB). The combination of the metal cover and the printed circuit board of the connector can be roughly divided into a plug-in type and an adhesive type, wherein the plug-in type utilizes the The at least one fixing leg of the metal cover and the at least one insertion hole of the printed circuit board are mutually engaged in a three-dimensional structure, and the connection relationship is strengthened by soldering, so that the connection mode of the plug-in type is relatively stable.

However, although the fixing leg of the conventional metal casing can achieve the purpose of embedding the socket of the printed circuit board, the metal casing is usually an integrally formed structure, and is based on the use of materials, distribution of other components, and fabrication. Due to the limitation of the method, the fixed foot of the metal cover often has insufficient length, thus affecting the effect of the solder. Please refer to the first aspect of FIG. A, which is a perspective view of a conventional metal cover. The two sides of the metal cover A1 are respectively provided with a pair of front fixing legs A11a, A11b and a pair of rear fixing feet A12a (another Not shown in the rear fixed foot diagram). Next, taking one of the front fixing legs A11a as an example, please refer to a partial structural diagram in which the front fixing leg A11a is inserted into the insertion hole A3 of the printed circuit board A2 and fixed by soldering, as shown in FIG. As can be seen from the figure, the portion of the front fixing leg A11a which is inserted into the socket A3 of the printed circuit board A2 is embedded by the solder structure A4, and the portion where the front fixing leg A11a is in contact with the printed circuit board A2 is combined. . Next, please refer to the partial structure diagram of inserting the front fixing pin A11a' into the jack A3' of the printed circuit board A2' and fixing it by soldering, as shown in FIG. C, but different from the first A picture. The length of the front fixing leg A11a' is long, so that the portion protruding after the insertion of the socket A3' of the printed circuit board A2' is long, and the area and volume of the solder structure A4' are also large. The method can make the combination between the front fixing leg A11a' and the printed circuit board A2' more compact. From the comparison of the first B picture and the first C picture, the fixed length leg can increase the stability of the connection between the metal cover and the printed circuit board, and reduce the defect rate of the electrical connector product.

Based on the above characteristics, the inventors have proposed an electrical connector structure that can lengthen the fixed legs. For example, in the patent application "Iron Connector for Surface Mounting of Circuit Boards" of Patent Publication No. I226142, please refer to the second figure, which is a perspective view of the electrical connector housing of the invention. As can be seen from the figure, the electrical connector housing B30 includes a pair of special front fixing legs B33, which includes a pair of special front fixing legs B33. a portion B33a and a flat portion B33b extending from the front end of the corresponding side wall B44 and bent in the rear end direction, and the flat portion B33b is connected to the bent portion B33a and connected to the electrical connector The housing B30 extends below. The structure of the front fixing leg B33 is not cut by the inner wall surface of the electrical connector housing B30, but the use of the material is increased on the outer side of the wall surface, and the front fixing leg B33 is obtained by bending. The structure, so the front fixing foot B33 can be arbitrarily increased in length, and is not limited by the use of materials, the distribution of components, and the manufacturing method. Compared with the conventional electrical connector housing, the fixing of the B33 foot before the electrical connector housing B30 can achieve the purpose of growth, but the relative use of the material is greatly increased, and the cost is increased.

Therefore, it is necessary to provide a structural improvement of the electrical connector housing and a manufacturing method thereof for the purpose of extending the fixed leg of the electrical connector housing, and at the same time overcoming the above-mentioned prior art, the cost must be increased to achieve the disadvantage of the fixed foot extension. .

Therefore, in view of the aforementioned problems and deficiencies, the inventors have accumulated years of experience, exerted imagination and creativity, and after continuous trial and modification, the structure improvement of the electrical connector housing of the present invention and the manufacturing method thereof .

A first object of the present invention is to provide an improvement in the structure of an electrical connector housing comprising two second elongated solder legs, and a method of fabricating the same, the length of the two second elongated solder legs being longer than conventional The fixing leg is longer, so that when the electrical connector housing is inserted into the printed circuit board by two second extended soldering legs and soldered, the connection between the electrical connector housing and the printed wiring board can be more stable and not easy to fall off. Reduce the product's non-performing rate.

A second object of the present invention is to provide an improved structure of an electrical connector housing comprising two second elongated solder legs, and a method of manufacturing the same, the second extended solder in use of the material The foot is divided by the inside of the wall surface of the casing, and is not bent by adding the material outside the wall surface of the casing, so that the present invention achieves the maximum effect with the least cost.

A third object of the present invention is to provide an improvement in the structure of an electrical connector housing comprising two second elongated solder legs, and a method of manufacturing the same, in a method in which the housing is bent and formed. The two second extended soldering legs are extended by a special method such as extrusion and stretching to achieve the purpose of extending the soldering feet.

The detailed description of the drawings and the preferred embodiments are set forth in the accompanying drawings.

In order to achieve the above-mentioned purpose and effect, the inventors have obtained the structural improvement of an electrical connector housing of the present invention under the constant correction and adjustment by using the material usage of the prior art and the improved manufacturing method. Production method. The electrical connector housing structure of the first preferred embodiment of the present invention, the electrical connector housing manufacturing method of the first preferred embodiment, and the electrical connector housing of a second preferred embodiment The structure and the structural features of the present invention and the manufacturing method thereof are respectively described in detail.

First, please refer to the third and fourth figures, respectively, which are respectively a perspective view of the electrical connector housing of the first preferred embodiment of the present invention and another angle of the first preferred embodiment. A perspective view of the connector housing. The electrical connector housing 100 is an integrally formed structure comprising:

A first wall 110 is a flat structure and defines a first edge 111a and a second edge 111b. The first wall 110 includes a planar portion 113 and two inclined portions 114a, 114b. The two inclined surface portions 114a, 114b are respectively connected to the two sides of the planar portion 113 at a first specific angle α1, and the intersection of the two inclined surface portions 114a, 114b and the planar portion 113 is two The first turning line 117a, 117b, the flat portion 113 is composed of two half planes 113a, 113b, respectively, a first elastic piece 116a, 116b, the two first elastic pieces 116a, 116b respectively A first protrusion 1161a, 1161b is included. In addition, the two slope portions 114a, 114b of the first wall surface 110 further include a fourth inflection line 118a, 118b, and the two slope portions 114a, 114b are separated by the fourth The lines 118a, 118b exhibit a bend of a fourth specific angle α4;

A second wall surface 120 and a third wall surface 130 are formed in a flat structure. The second wall surface 120 defines a third edge 121a and a fourth edge 121b. The third wall surface 130 A fifth edge 131a and a third edge 131b are defined. The second wall surface 120 and the third wall surface 130 are respectively connected to the two inclined surface portions 114a and 114b of the first wall surface 110. The second wall surface 120 and the third wall surface 130 are respectively associated with The two inclined surface portions 114a, 114b are at an angle α2 of a second specific angle, and the boundary line between the second wall surface 120 and the third wall surface 130 and the two inclined surface portions 114a, 114b are respectively two second turning lines. 122, 132, and the third edge 121a of the second wall surface 120 and the fifth edge 131a of the third wall surface 130 correspond to the first edge 111a of the first wall surface 110, and the fourth edge of the second wall surface 120 The second edge 131b of the first wall surface 110 corresponds to the second edge 111b of the first wall surface 110;

Two blocking pieces 180a, 180b are respectively connected to the fourth edge 121b of the second wall surface 120 and the sixth edge 131b of the third wall surface 130, and the two blocking pieces 180a, 180b are respectively oriented Bending and extending in opposite directions;

a fourth wall surface 140 is a flat structure defining a seventh edge 141a and an eighth edge 141b. The fourth wall surface 140 has a third specific angle α3 and a second portion on both sides thereof. The wall surface 120 and the third wall surface 130 are coupled, and the boundary between the fourth wall surface 140 and the second wall surface 120 and the third wall surface 130 is two third inflection lines 143a, 143b, and the seventh edge 141a of the fourth wall surface 140 The position corresponds to the third edge 121a of the second wall surface 120 and the fifth edge 131a of the third wall surface 130. The position of the eighth edge 141b of the fourth wall surface 140 corresponds to the fourth edge 121b and the third edge of the second wall surface 120. The sixth edge 131b of the wall surface 130 is defined by the first edge 111a of the first wall surface 110, the third edge 121a of the second wall surface 120, the fifth edge 131a of the third wall surface 130, and the seventh edge 141a of the fourth wall surface 140. The first opening 104a of the electrical connector housing 100 is composed of a second edge 111b of the first wall surface 110, a fourth edge 121b of the second wall surface 120, a sixth edge 131b of the third wall surface 130, and a fourth wall surface 140. The eighth edge 141b can define a second opening of the electrical connector housing 100 The port 104b, the fourth wall 140 further includes two second elastic pieces 144a, 144b, the two second elastic pieces 144a, 144b respectively include a second protrusion 1441a, 1441b;

Two first soldering legs 150a, 150b are respectively connected to the two second turning lines 122, 132, and the connecting position is close to the second of the electrical connector housing 100 The opening 104b, and the two first soldering legs extend to the outside of the first wall surface 110 of the electrical connector housing 100, and the two first soldering legs 150a, 150b are respectively located at the second wall surface 120 and the third wall surface 130 connected thereto On the same plane; and

Two second extended soldering legs 160a, 160b are respectively coupled to the two second inflection lines 122, 132, and are connected to the electrical connector housing 100. An opening 104a, the two second elongated soldering legs 160a, 160b extend toward the outside of the first wall surface 110 of the electrical connector housing 100, and the lengths of the two second elongated soldering legs 160a, 160b are greater than two first Solder pins 150a, 150b, and two second extended solder legs 160a, 160b respectively protrude outside the second wall surface 120 and the third wall surface 130 of the electrical connector housing 100, so that the two second extended solder legs 160a, The 160b is located on a different plane from the second wall surface 120 and the third wall surface 130, respectively.

In order to fabricate the structure of the electrical connector housing 100 of the first preferred embodiment described above, the present invention has been developed to develop a series of special manufacturing methods. Please refer to FIG. 5 and FIG. 6A to FIG. 6 respectively. FIG. 5 is a flowchart of a manufacturing method of the electrical connector housing of the first preferred embodiment, and FIG. 6A to FIG. A schematic diagram of the steps in the manufacturing process. The manufacturing method of the electrical connector housing 100 of the first preferred embodiment includes the following steps:

(1) As shown in FIG. 6A, a planar development view 102a of the electrical connector housing 100 is provided on a planar substrate 102, and unnecessary portions are cut and removed (step 201), and the sixth B-picture is shown. A side view of the planar development view 102a, wherein the planar substrate 102 is made of a metal material having ductility;

(2) The two first elastic pieces 116a and 116b and the two second elastic pieces 144a and 144b are three-dimensionally bent to form the two first protrusions, respectively, as shown in FIG. 6A and FIG. 1161a, 1161b and the two second protrusions 1441a, 1441b (step 202);

(3) As shown in FIG. 6D, the two half planes 113a, 113b of the first wall surface 110 are bent by the two first turning lines 117a, 117b, respectively, at the first specific angle α1. Two second extended solder legs 160a, 160b are exposed (step 203);

(4) as shown in the sixth E, the two second elongated solder legs 160a, 160b are extended by an extrusion stretching method (step 204);

(5) As shown in FIG. F, the two second extended soldering legs 160a, 160b are then bent (step 205), so that the two second elongated soldering legs 160a, 160b are respectively formed with the subsequent steps. The wall surface 120 and the third wall surface 130 are located on different planes;

(6) As shown in the sixth G diagram, the two inclined surface portions 114a, 114b of the first wall surface 110 are bent by the two second inflection lines 122, 132, respectively, at the second specific angle α2, and simultaneously The inside of the two inclined surface portions 114a, 114b is bent by the four fourth inflection lines 118a, 118b for the fourth specific angle angle α4 (step 206);

(7) As shown in the sixth H and sixth I, the second wall 120 and the third wall 130 are respectively subjected to two bending processes by the two third turning lines 143a and 143b, and finally the first The bending of the three specific angles α3 simultaneously forms the fourth wall surface 140 (step 207);

(8) Finally, as shown in FIG. 6J, the two half planes 113a, 113b of the first wall surface 110 are joined to each other to form a complete planar portion 113 (step 208), wherein two of the first wall surfaces 110 The half planes 113a, 113b can be mated to each other by structural pairing to achieve a tight bond.

Referring to FIG. 7 , a perspective view of the electrical connector housing of the second preferred embodiment of the present invention, the first preferred embodiment of the electrical connector housing 100 ′ and the first The structure of the electrical connector housing 100 of the preferred embodiment is substantially the same, and is not described herein again. The only difference is that the electrical connector housing 100' structure of the second preferred embodiment further includes a screw locking piece. 170. The screw locking piece 170 is connected to the seventh edge 141a' of the fourth wall surface 140'. The screw locking piece 170 is provided with a screw locking hole 171, and the electrical connector housing 100' can be locked by the screw The hole 171 is tightly coupled to a printed circuit board or other external component by means of a screw lock.

From the above detailed description of the improvement of the electrical connector housing structure of the present invention and its manufacturing method, the following advantages can be summarized for the present invention:

1. The electrical connector housing of the present invention includes two second elongated solder legs having a length that is longer than conventional fixed legs, so that when the electrical connector housing is made up of two second After the soldering foot is inserted into the printed circuit board and soldered, the connection between the electrical connector housing and the printed circuit board can be more stable and not easy to fall off, thereby reducing the defect rate of the product.

2. In the use of the material of the present invention, the two second extended soldering legs are separated from the inner wall of the casing and are extended by special methods such as extrusion and stretching, and the material is not added outside the wall of the casing. The use is further bent, so that the present invention achieves the maximum effect with the least cost.

The embodiments described above are merely illustrative of the technical spirit and characteristics of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. Equivalent variations or modifications in accordance with the spirit of the invention are still intended to be included within the scope of the invention.

The inventor has been continually conceived and modified to finally obtain the design of the present invention, and possesses the above-mentioned many advantages. It is an excellent invention, and should conform to the requirements of the invention patent, and the application is made, and the review committee can give the invention early. Patents to protect the rights of inventors.

A1. . . Metal cover

A11a, A11a’. . . Front fixed foot

A12a. . . Rear fixed foot

A2, A2’. . . A printed circuit board

A3, A3’. . . Jack

A4, A4’. . . Solder structure

B30. . . Electrical connector housing

B33. . . Front fixed foot

B33a. . . Flexion

B33b. . . Flat part

B34. . . Rear fixed foot

B44. . . Side wall

100, 100’. . . Electrical connector housing

102. . . Planar substrate

102a. . . Plane development

104a. . . First opening

104b. . . Second opening

110. . . First wall

111a. . . First edge

111b. . . Second edge

113. . . Plane part

113a, 113b. . . Half plane

114a, 114b. . . Beveled part

116a, 116b. . . First shrapnel

1161a, 1161b. . . First protrusion

117a, 117b. . . First turning line

118a, 118b. . . Fourth turning line

120. . . Second wall

121a. . . Third edge

121b. . . Fourth edge

130. . . Third wall

131a. . . Fifth edge

131b. . . Sixth edge

122, 132. . . Second turning line

140, 140’. . . Fourth wall

141a, 141a’. . . Seventh edge

141b. . . Eighth edge

143a, 143b. . . Third turning line

144a, 144b. . . Second shrapnel

1441a, 1441b. . . Second protrusion

150a, 150b. . . First solder foot

160a, 160b. . . Second extended solder foot

170. . . Screw lock

171. . . Screw lock hole

180a, 180b. . . Blank

201～208. . . Is the manufacturing method step number of the electrical connector housing of the present invention

11. . . First angle

22. . . Second angle

33. . . Third angle

44. . . Fourth angle

The first A is a three-dimensional appearance of a conventional metal cover;

The first B diagram is a schematic structural view of a portion of the shorter metal casing fixed leg inserted into the printed circuit board and soldered;

The first C diagram is a schematic structural view of a part of the metal cover fixing pin inserted into the printed circuit board and soldered;

The second drawing is a perspective view of another conventional connector housing of the prior art;

3 is a perspective view showing the appearance of an electrical connector housing according to a first preferred embodiment of the present invention;

Figure 4 is a perspective view showing the outer appearance of an electrical connector housing of another angle of the first preferred embodiment of the present invention;

Figure 5 is a flow chart showing a method of manufacturing an electrical connector housing according to a first preferred embodiment of the present invention;

6A to 6J are schematic views respectively showing steps in the manufacturing method of the first preferred embodiment of the present invention; and

Figure 7 is a perspective view showing the appearance of an electrical connector housing according to a second preferred embodiment of the present invention.

201～208. . . Is the manufacturing method step number of the electrical connector housing of the present invention

Claims (12)

A manufacturing method for improving the structure of an electrical connector housing, the steps of which are as follows: (1) providing a planar development view of an electrical connector housing on a planar substrate, and cutting unnecessary portions; (2) The two first elastic pieces and the two second elastic pieces are three-dimensionally bent to respectively form the two first protrusions and the two second protrusions; (3) the two of the first wall surfaces The half plane is respectively bent by the first first turning line by the two first turning lines; (4) the two second extended soldering feet are extended by a specific method; (5) the first The two inclined surface portions of the wall surface are bent by the second second turning line by the second specific angle; (6) the second wall surface and the third wall surface are respectively separated by the two third turning points The line is bent at the third specific angle while forming the fourth wall surface; and (7) the two half planes of the first wall surface are joined to each other to form the complete planar portion. The method for manufacturing an improved electrical connector housing according to the first aspect of the invention, wherein the planar substrate according to the step (1) is made of a metal material having ductility. The manufacturing method for improving the structure of an electrical connector housing according to claim 1, wherein the specific method described in the step (4) is an extrusion stretching method. The manufacturing method for improving the structure of the electrical connector housing according to the first aspect of the invention, wherein after the extending operation of the two second extended soldering legs in the step (4), two The two extended soldering legs are bent such that the two second elongated soldering legs are on different planes from the second wall surface and the third wall surface, respectively. The manufacturing method for improving the structure of the electrical connector housing according to the first aspect of the invention, wherein the two inclined portions of the step (5) respectively perform the second specific angle by the two second turning lines When bending, the inside of the two bevel portions can be bent at the same time. The manufacturing method for improving the structure of an electrical connector housing according to the first aspect of the invention, wherein the two half planes of the first wall surface described in the step (7) can be mutually coupled by a structure Chimerism to achieve a tight bond. The method for manufacturing an improved structure of an electrical connector housing according to claim 1, wherein the electrical connector housing is an integrally formed structure and includes: a first wall surface, the first wall surface is a flat structure and defining a first edge and a second edge, the first wall surface comprising a planar portion and two inclined surface portions, the two inclined surface portions being respectively coupled to the flat at a first specific angle The two sides of the face portion, and the intersection of the two slope portions and the plane portion are two first turning lines, and the plane portion is composed of two half planes, respectively, the two half planes are respectively provided with a first shrapnel The two first elastic pieces respectively include a first protrusion, a second wall surface and a third wall surface, the second wall surface and the third wall surface are a flat structure, and the second wall surface defines a third edge and a first a fourth edge, the third wall defines a fifth edge and a sixth edge, wherein the second wall surface and the third wall surface are respectively connected to the two inclined surface portions of the first wall surface, and the second wall surface and the third wall surface are respectively opposite to the two inclined surfaces The portion is at an angle of a second specific angle, and the boundary line between the second wall surface and the third wall surface and the two inclined surface portions are respectively two second turning lines, and the third edge and the third side of the second wall surface The position of the fifth edge of the wall corresponds to the first edge of the first wall surface, and the position of the fourth edge of the second wall surface and the sixth edge of the third wall surface corresponds to the second edge of the first wall surface; Fourth wall, the fourth wall is a flat plate The structure defines a seventh edge and an eighth edge, and the fourth wall surface is connected to the second wall surface and the third wall surface at a third specific angle on the two sides thereof, and the fourth wall surface and the second wall surface and the third wall surface The boundary line of the connection is two third inflection lines, and the position of the seventh edge of the fourth wall surface corresponds to the third edge of the second wall surface and the fifth edge of the third wall surface, and the eighth edge of the fourth wall surface The position corresponds to the fourth edge of the second wall surface and the sixth edge of the third wall surface, and the first edge of the first wall surface, the third edge of the second wall surface, the fifth edge of the third wall surface, and the fourth wall surface The seven edges may define a first opening of the electrical connector housing, the second edge of the first wall, the fourth edge of the second wall, the sixth edge of the third wall, and the eighth edge of the fourth wall may be defined a second opening of the electrical connector housing, the fourth wall further comprises two second elastic pieces, the two second elastic pieces respectively comprise a second protrusion; two first soldering feet, the two first soldering The legs are respectively connected to the two second turning lines, and the connecting position is close to the second opening of the electrical connector housing, and the two first soldering legs extend to the outer side of the first wall surface of the electrical connector housing; And two second extended soldering legs, wherein the two second extended soldering legs are respectively connected to the two second turning lines, and the connecting position is close to the first opening of the electrical connector housing, and the two second extended soldering feet Extending to the outer side of the first wall of the electrical connector housing, and the length of the two second elongated solder legs is greater than the two first solder legs. The manufacturing method of the improved structure of the electrical connector housing of claim 7, wherein the electrical connector housing further comprises two blocking pieces, and the two blocking pieces are respectively connected to the second The fourth edge of the wall and the sixth edge of the third wall, and the two flaps are each bent to extend in opposite directions. The manufacturing method of the improved structure of the electrical connector housing of claim 7, wherein the two first soldering legs are respectively connected to the second The wall surface and the third wall surface are on the same plane. The manufacturing method of the improved structure of the electrical connector housing of claim 7, wherein the two second extended soldering legs are respectively connected to the second wall surface of the electrical connector housing and The outer side of the third wall protrudes such that the two second elongated solder legs are located on different planes from the second wall surface and the third wall surface, respectively. The manufacturing method of the improved structure of the electrical connector housing according to the seventh aspect of the invention, wherein the two inclined surface portions of the first wall surface further comprise a fourth turning line and two inclined surfaces. The portion exhibits a fourth specific angle of bending by the fourth turning line. The manufacturing method of the improved structure of the electrical connector housing according to the seventh aspect of the invention, wherein the electrical connector housing further comprises a screw locking piece, the screw locking piece being connected to the first The seventh edge of the four wall surface is provided with a screw lock hole on the screw lock sheet.