CN109786999B - Electrical connector - Google Patents
Electrical connector Download PDFInfo
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- CN109786999B CN109786999B CN201910175882.8A CN201910175882A CN109786999B CN 109786999 B CN109786999 B CN 109786999B CN 201910175882 A CN201910175882 A CN 201910175882A CN 109786999 B CN109786999 B CN 109786999B
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- electrical connector
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Abstract
The present invention provides an electrical connector comprising: an insulating body; the shielding sheet is arranged on the insulating body; the grounding terminal is provided with a base part, a first elastic arm is formed by bending and extending upwards from the base part, the first elastic arm is provided with a through groove, the left side and the right side of the through groove are provided with two inner side edges, a first contact part is formed by extending backwards from the first elastic arm, the base part is bent and extended upwards to form a butting part which is butted with the shielding sheet, the butting part is provided with a free part, the width of the free part is smaller than or equal to the distance between the two inner side edges, and the free part is formed between the two inner side edges; a plurality of signal terminals in the insulative body; the electric connector can shield the crosstalk of the signal terminal and reduce the space occupied by the grounding terminal.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electrical connector, and more particularly, to a shielded electrical connector.
[ background of the invention ]
A shielded connector for electrically connecting a chip module to a circuit board, comprising: the signal terminals are provided with a first base part, a first elastic arm is formed by bending and extending upwards from the top end of the first base part, and a first tail part is formed by vertically and downwards extending from the first base part; each grounding terminal is provided with a second base part, a second elastic arm and a pressure connecting arm are formed by bending and extending upwards from the top end of the second base part, the pressure connecting arm is positioned on one side of the second elastic arm, and a second tail part is formed by extending downwards and vertically from the second base part; the upper shielding sheet covers the upper surface of the insulating body, an upper terminal hole is formed in the position, corresponding to each signal terminal and each grounding terminal, of the upper shielding sheet, the first elastic arm and the second elastic arm extend out of the corresponding upper terminal holes respectively and are abutted against the chip module upwards, and the crimping arm is abutted against the surface of the upper shielding sheet downwards; the lower shielding sheet covers the lower surface of the insulating body, a lower terminal hole is formed in the position, corresponding to each signal terminal and each grounding terminal, of the lower shielding sheet, and the first tail part and the second tail part penetrate through the lower terminal holes to be connected to the circuit board; and the connecting piece is of a plate-shaped structure, penetrates through the insulating body from top to bottom, and is welded and fixed with the upper shielding sheet and the lower shielding sheet at the upper end and the lower end respectively. However, the crimping arm is disposed on one side of the second elastic arm of the ground terminal, so that the width of the ground terminal is increased by the disposition of the crimping arm, which increases the space occupied by the ground terminal and increases the material of the ground terminal, thereby increasing the production cost of the ground terminal, and the ground terminal and the signal terminal cannot be disposed in a limited space of the insulating body, which is not beneficial to the shield connector to transmit more signals, thereby being not beneficial to the improvement of the performance of the electrical connector.
Therefore, there is a need for an electrical connector that overcomes the above problems.
[ summary of the invention ]
The invention aims to provide an electric connector which can shield crosstalk of a signal terminal and reduce the space occupied by a grounding terminal.
In order to achieve the purpose, the electric connector adopts the following technical scheme:
an electrical connector, comprising: an insulating body; the shielding sheet is arranged on the insulating body; the grounding terminal is provided with a base part, a first elastic arm is formed by bending and extending upwards from the base part, the first elastic arm is provided with a through groove, the left side and the right side of the through groove are provided with two inner side edges, a first contact part is formed by extending backwards from the first elastic arm, the base part is bent and extended upwards to form a butting part which is butted with the shielding sheet, the butting part is provided with a free part, the width of the free part is smaller than or equal to the distance between the two inner side edges, and the free part is formed between the two inner side edges; the signal terminals are positioned in the insulating body and provided with second elastic arms, and the second elastic arms are provided with through holes and extend backwards to form second contact parts.
Further, the basal portion is provided with a notch communicated with the through groove, and the abutting portion extends upwards from the lower end of the notch.
Further, the abutting part is bent forwards from the base part, and the first elastic arm is bent forwards from the base part and then bent backwards to form the elastic arm.
Further, the shielding plate is provided with an accommodating hole for accommodating the grounding terminal, the upper end of the free portion extends out of the accommodating hole, and the side surface of the abutting portion abuts against the accommodating hole.
Further, the abutting portion has a connecting portion connecting the free portion and the base portion, the connecting portion has a width larger than that of the free portion, and a side surface of the free portion abuts against the accommodating hole.
Further, the ground terminal includes an upper terminal and a lower terminal contacting each other, the abutting portion is disposed on the upper terminal, and the lower terminal is connected to a circuit board in a conductive manner.
Furthermore, the shielding sheet covers the upper surface of the insulating body, a metal sheet covers the lower surface of the insulating body, and the lower terminal is provided with a guide connection part which is in contact with the metal sheet.
Furthermore, the lower terminal is provided with a main body part, the main body part is bent forwards and extends upwards to form an extending part, the extending part and the main body part jointly clamp the base part, and the main body part is bent downwards and extends to form a force arm which is downwards abutted against the circuit board; the base portion is bent backwards and extends downwards to form a bent portion, and the base portion and the bent portion clamp the main body portion together.
Furthermore, the insulation body is provided with an upper blocking surface and a lower blocking surface, the insulation body is bent forwards from the base part and extends upwards to form an upper blocking part which upwards supports the upper blocking surface, and the insulation body is bent backwards from the main body part and extends downwards to form a lower blocking part which downwards supports the lower blocking surface.
Further, the free portion is located between the inner side edges in the front-rear direction.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, the abutting part abuts against the shielding sheet, so that the crosstalk of the signal terminal can be shielded; because the abutting part is provided with a free part formed in the through groove, the abutting part is formed between the left side and the right side of the through groove, so that the abutting part does not increase the width of the grounding terminal additionally, the space occupied by the grounding terminal can be reduced, more grounding terminals and signal terminals can be arranged in the limited space of the insulating body, the electric connector can transmit more signals, and the performance of the electric connector can be improved; and the abutting portion is formed of a material for forming the through groove with the ground terminal, without increasing the material of the ground terminal to cause an increase in cost; in addition, the second elastic arm is provided with a through hole, so that the second elastic arm forms two branches at the left side and the right side of the through hole, and the signal terminal forms two parallel conductive paths, thereby reducing impedance and improving high frequency.
[ description of the drawings ]
Fig. 1 is an exploded perspective view of the electrical connector of the present invention;
FIG. 2 is a front view of the ground and signal terminals of the present invention;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a perspective view of FIG. 2;
FIG. 5 is an exploded view of FIG. 2;
FIG. 6 is a cross-sectional view taken at location A-A of FIG. 1;
FIG. 7 is an enlarged view of the position of F of FIG. 6;
FIG. 8 is an enlarged view of the position of B of FIG. 6;
FIG. 9 is a perspective view of FIG. 6;
FIG. 10 is an enlarged view of the position C of FIG. 9;
FIG. 11 is an enlarged view of the position of D of FIG. 9;
fig. 12 is an expanded view of the connection between the upper terminal and the tape before molding;
FIG. 13 is an enlarged view of the E position of FIG. 12;
fig. 14 is a top view of the electrical connector of the present invention.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
| |
1 | |
11 | |
12 |
| First |
13 | Through |
14 | |
141 |
| |
15 | Abutting |
16 | Connecting |
161 |
| Free part | 162 | A |
17 | |
18 |
| Connecting |
19 | |
2 | |
21 |
| |
22 | Arm of |
23 | |
24 |
| |
25 | |
3 | Second |
31 |
| |
32 | Through |
33 | |
4 |
| |
41 | |
411 | |
42 |
| Lower baffle surface | 421 | |
5 | Containing |
51 |
| |
6 | |
61 | Material belt | 7 |
| |
100 | |
200 | |
300 |
[ detailed description ] embodiments
For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.
As shown in fig. 1 to 14, an electrical connector for electrically connecting a chip module 200 to a circuit board 300 according to an embodiment of the present invention includes: an insulating body 4; a plurality of ground terminals 100 and a plurality of signal terminals 3 accommodated in the insulating housing 4, wherein the ground terminals 100 and the signal terminals 3 are abutted against the chip module 200 in an upward direction and connected to the circuit board 300 in a downward direction; a shielding plate 5 covers the upper surface of the insulating body 4, a metal plate 6 covers the lower surface of the insulating body 4, and the ground terminal 100 is respectively connected with the shielding plate 5 and the metal plate 6 in a conductive manner.
As shown in fig. 1 and 9, the insulation body 4 includes an upper substrate 41 and a lower substrate 42, a lower surface of the upper substrate 41 is attached to an upper surface of the lower substrate 42, as shown in fig. 7, the upper substrate 41 has an upper blocking surface 411, as shown in fig. 11, the lower substrate 42 has a lower blocking surface 421.
As shown in fig. 1, 6 and 7, the shielding plate 5 is made of metal, covers the upper surface of the upper base 41, and is injection-molded (insert-mold) with the upper base 41, and the shielding plate 5 is provided with a plurality of receiving holes 51 for receiving the plurality of ground terminals 100 and the plurality of signal terminals 3.
As shown in fig. 1, 6 and 8, the metal sheet 6 covers the lower surface of the lower base 42 and is injection-molded (insert-mold) with the lower base 42, and the metal sheet 6 is provided with a plurality of through holes 61.
As shown in fig. 2, 4 and 6, the ground terminal 100 is of two pieces, which includes that the upper terminal 1 is received in the receiving hole 51 and the lower terminal 2 is received in the through hole 61, the upper terminal 1 has a base portion 11, a connecting portion 19 is extended upward from each of the left and right sides of the base portion 11 for connecting the tape 7 (as shown in fig. 12), the base portion 11 is of a flat plate shape, and is bent forward and extended backward from the base portion 11 to form a first elastic arm 13, a first contact portion 15 is extended backward from the first elastic arm 13 to abut against the chip module 200 upward, the first elastic arm 13 has a through slot 14, the through slot 14 has two inner side edges 141 on the left and right sides, the through slot 14 extends to the first contact portion 15, a notch 12 is provided in the center of the left and right sides of the base portion 11, the notch 12 is communicated with the through slot 14, a contact portion 16 is formed by bending forward from the lower end of the notch 12 and extending upward, the contact portion 16 has a free portion 162 and a connection portion 161 connecting the free portion 162 and the base portion 11, the width of the connection portion 161 is greater than that of the free portion 162, as shown in fig. 12 and 13, before the upper terminal 1 is molded, the left and right sides of the contact portion 16 are connected to the two inner side edges 141, and during molding, the contact portion 16 is formed by tearing downward from the through groove 14, so that the width of the free portion 162 is equal to the distance between the two inner side edges 141 of the through groove 14 (of course, in other embodiments, the free portion 162 may be formed by blanking from the through groove 14, so the width of the free portion 162 may be smaller than the distance between the two inner side edges 141 of the through groove 14), that is, the free portion 162 is formed by a portion of material punched out and removed during molding of the through groove 14, the free portion 162 is located between the inner edges 141 in the front-rear direction, an upper end of the free portion 162 extends out of the housing hole 51, and a side surface of the free portion 162 abuts against the housing hole 51. The base 11 penetrates through the upper base 41 downward and extends into the lower base 42, as shown in fig. 4, 6, and 7, the base 11 is bent backward and extends downward to form a bent portion 17 located below the notch 12, the bent portion 17 is disposed at a position deviated to the right side of the base 11, and the base 11 is bent backward and extends upward to form an upper blocking portion 18 upwardly abutting against the upper blocking surface 411, so as to prevent the upper terminal 1 from being separated from the upper base 41 upward.
As shown in fig. 2, 4 and 6, the lower terminal 2 has a main body 21, and the main body 21 extends upward through the lower base 42 to the upper base 41 and is clamped between the base 11 and the bent portion 17. As shown in fig. 1, 9 and 11, a moment arm 23 is formed by bending the main body 21 forward and then backward, and the moment arm 23 extends downward to the through hole 61 and abuts against the circuit board 300. A guiding portion 22 extends downward at a left-right central position of the main body portion 21, and a side surface of the guiding portion 22 abuts against the through hole 61. The main body 21 is bent forward and extended upward to form an extending portion 25 above the guiding portion 22, the extending portion 25 and the main body 21 together clamp the base portion 11, the extending portion 25 is disposed on the left side of the main body 21, and the main body 21 is bent backward and extended upward to form a lower blocking portion 24 to downwardly abut against the lower blocking surface 421, so as to prevent the lower terminal 2 from being separated from the lower base 42 downward.
As shown in fig. 1, 3 and 4, the signal terminal 3 has a similar structure to the ground terminal 100, that is, the signal terminal 3 has a second elastic arm 31 (which has the same structure as the first elastic arm 13), the second elastic arm 31 has a through hole 33 (which has the same structure as the through slot 14) such that the second elastic arm 31 forms two branches symmetrical to each other on the left and right sides of the through hole 33, and a second contact portion 32 (which has the same structure as the first contact portion 15) extends backward from the second elastic arm 31 and abuts against the chip module 200, and the signal terminal 3 is different from the ground terminal 100 in that the signal terminal 3 does not have the abutting portion 16 and the guide portion 22, so that the signal terminal 3 does not contact with the shielding plate 5 and the metal plate 6.
As shown in fig. 6 and 14, each of the signal terminals 3 is surrounded by a plurality of ground terminals 100, the abutting portion 16 of the ground terminal 100 is connected to the shielding plate 5, and the connecting portion 22 is connected to the metal plate 6, so as to form a three-dimensional shielding space for placing each of the signal terminals 3 therein, so that each of the signal terminals 3 achieves a good shielding effect, although the arrangement of the signal terminals 3 and the ground terminals 100 is not limited thereto.
Of course, in other embodiments, the ground terminal 100 may be a single piece, that is, the ground terminal 100 has only the upper terminal 1, and extends downward from the base 11 to form a soldering portion (not shown) to connect with the circuit board 300.
The electric connector of the invention has the following beneficial effects:
1. in the present invention, the abutting portion 16 abuts against the shield piece 5, so that crosstalk of the signal terminal 3 can be shielded; since the abutting portion 16 has a free portion 162 formed in the through slot 14, the abutting portion 16 is formed between the left and right sides of the through slot 14, so that the abutting portion 16 does not increase the width of the ground terminal 100, the space occupied by the ground terminal 100 can be reduced, and the abutting portion 16 is formed by using the material of the ground terminal 100 forming the through slot 14, which does not increase the cost of the material of the ground terminal 100; in addition, since the second elastic arm 31 is provided with a through hole 33, the second elastic arm 31 forms two branches at the left and right sides of the through hole 33, so that two parallel conductive paths sequentially passing through the two branches are formed between the chip module 200 and the circuit board 300, thereby reducing impedance and improving high frequency.
2. Since the width of the connecting portion 161 is greater than that of the free portion 162, the connecting portion 161 can be set to have a greater width to enhance the strength of the abutting portion 16, and the width of the free portion 162 is designed to be smaller to avoid the through slot 14 from affecting the strength of the first elastic arm 13 too much, so that the free portion 162 has better elasticity when abutting against the shielding plate 5.
3. The abutting part 16 extends upwards from the lower end of the notch 12 of the base 11, so that the height of the abutting part 16 can be reduced while the length of the abutting part 16 is increased, and further the height of the shielding sheet 5 is reduced, which is beneficial to the development trend of thinning the electric connector.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.
Claims (10)
1. An electrical connector, comprising: the method comprises the following steps:
an insulating body;
the shielding sheet is arranged on the insulating body;
at least one grounding terminal, which is located in the insulating body and is provided with a base part, wherein the base part is bent upwards to form a first elastic arm, the first elastic arm is provided with a through groove, the left side and the right side of the through groove are provided with two inner side edges, the first elastic arm is extended backwards to form a first contact part, the base part is bent upwards to form a butting part which is butted with the shielding sheet, the butting part is provided with a free part, the width of the free part is less than or equal to the distance between the two inner side edges, and the free part is formed between the two inner side edges;
the signal terminals are positioned in the insulating body and provided with second elastic arms, and the second elastic arms are provided with through holes and extend backwards to form second contact parts.
2. The electrical connector of claim 1, wherein: the base part is provided with a notch communicated with the through groove, and the abutting part extends upwards from the lower end of the notch.
3. The electrical connector of claim 1, wherein: the abutting part is bent forwards from the base part, and the first elastic arm is bent forwards from the base part, extends and then is bent backwards to form.
4. The electrical connector of claim 1, wherein: the shielding sheet is provided with an accommodating hole for accommodating the grounding terminal, the upper end of the free part extends out of the accommodating hole, and the side surface of the abutting part abuts against the accommodating hole.
5. The electrical connector of claim 4, wherein: the abutting part is provided with a connecting part which is connected with the free part and the base part, the width of the connecting part is larger than that of the free part, and the side surface of the free part abuts against the accommodating hole.
6. The electrical connector of claim 1, wherein: the grounding terminal comprises an upper terminal and a lower terminal which are mutually contacted, the abutting part is arranged on the upper terminal, and the lower terminal is connected with a circuit board in a guiding way.
7. The electrical connector of claim 6, wherein: the shielding sheet covers the upper surface of the insulating body, a metal sheet covers the lower surface of the insulating body, and the lower terminal is provided with a guide connection part which is in contact with the metal sheet.
8. The electrical connector of claim 6, wherein: the lower terminal is provided with a main body part, the main body part is bent forwards and extends upwards to form an extending part, the extending part and the main body part jointly clamp the base part, and the main body part is bent downwards to extend to form a force arm to be abutted against the circuit board downwards; the base portion is bent backwards and extends downwards to form a bent portion, and the base portion and the bent portion clamp the main body portion together.
9. The electrical connector of claim 8, wherein: the insulating body is provided with an upper blocking surface and a lower blocking surface, an upper blocking part is formed by bending the base part backwards and extending upwards to abut against the upper blocking surface upwards, and a lower blocking part is formed by bending the main body part backwards and extending downwards to abut against the lower blocking surface downwards.
10. The electrical connector of claim 1, wherein: the free portion is located between the inner side edges in the front-rear direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910175882.8A CN109786999B (en) | 2019-03-08 | 2019-03-08 | Electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910175882.8A CN109786999B (en) | 2019-03-08 | 2019-03-08 | Electrical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109786999A CN109786999A (en) | 2019-05-21 |
| CN109786999B true CN109786999B (en) | 2020-08-28 |
Family
ID=66486355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910175882.8A Active CN109786999B (en) | 2019-03-08 | 2019-03-08 | Electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109786999B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718790B (en) * | 2019-09-04 | 2021-02-26 | 番禺得意精密电子工业有限公司 | Electrical connector |
| CN111431000B (en) * | 2020-03-12 | 2021-06-18 | 番禺得意精密电子工业有限公司 | Electrical connector |
| CN111430990B (en) * | 2020-03-31 | 2021-05-25 | 番禺得意精密电子工业有限公司 | Electric connector and electric connector combination |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341965B1 (en) * | 1999-08-18 | 2002-01-29 | Starlink Electronics Corp. | Electric connector with shielding effect |
| CN2409633Y (en) * | 1999-09-22 | 2000-12-06 | 富士康(昆山)电脑接插件有限公司 | Electric connector terminal |
| US7959466B2 (en) * | 2007-08-01 | 2011-06-14 | Lotes Co., Ltd. | Individually filtered terminals and shielded circuit board through-holes |
| TWM358444U (en) * | 2008-12-30 | 2009-06-01 | Advanced Connectek Inc | Electric connector suitable for transmitting a high-frequency signal |
| US7883371B1 (en) * | 2009-07-22 | 2011-02-08 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector with improved contact footprints |
| CN203242847U (en) * | 2013-02-22 | 2013-10-16 | 番禺得意精密电子工业有限公司 | An electric connector |
| CN104779487A (en) * | 2014-01-09 | 2015-07-15 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN105244654B (en) * | 2015-11-03 | 2018-09-18 | 昆山全方位电子科技有限公司 | Electric connector and its manufacturing method |
-
2019
- 2019-03-08 CN CN201910175882.8A patent/CN109786999B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109786999A (en) | 2019-05-21 |
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