CN209896378U - Card edge connector structure - Google Patents
Card edge connector structure Download PDFInfo
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- CN209896378U CN209896378U CN201920465710.XU CN201920465710U CN209896378U CN 209896378 U CN209896378 U CN 209896378U CN 201920465710 U CN201920465710 U CN 201920465710U CN 209896378 U CN209896378 U CN 209896378U
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Abstract
A card edge connector structure comprises an insulating shell, a terminal component, a first grounding piece and a second grounding piece. The terminal assembly comprises a first terminal set and a second terminal set and is arranged in the insulating shell. The first grounding piece is arranged between the insulating shell and the first terminal group, and the second grounding piece is arranged between the insulating shell and the second terminal group. The first resilient arm of the first ground plate contacts the first ground terminal through the first groove of the first terminal retainer and the second resilient arm of the second ground plate contacts the second ground terminal through the second groove of the second terminal retainer.
Description
Technical Field
The present invention relates to a card edge connector structure, and more particularly, to a card edge connector structure capable of preventing interference and ensuring transmission characteristics of the connector.
Background
The connector refers to a connecting element and an accessory for electronic signals. The cables and connectors are used to convert and transmit signals between the electronic devices, i.e., the connectors are also used as bridges between signals. Connectors are widely used in automotive and computer peripheral applications for communicating data, industrial, military aviation, transportation, consumer electronics, medical, instrumentation, commercial equipment, etc., and thus play an important role in a variety of fields. In the generation with advanced information and high efficiency, the transmission speed of signal is continuously increasing. Therefore, high frequency connectors have also been developed to increase the transmission rate of signals.
However, the higher the frequency of the signal carried by the connector, the more susceptible it is to external factors, such as: electromagnetic Interference (EMI). The connector will be subject to electromagnetic interference and cause signal incompleteness, further affecting the transmission quality. In addition, with the development of the electronic industry, electronic products are becoming smaller, and therefore, the distance between each conductive terminal inside the connector is getting closer. Since the pitch of each conductive terminal is reduced to be unfavorable for the transmission of high frequency signals, Crosstalk (Crosstalk) between the conductive terminals is easily caused. Due to the above mentioned interference, the signal transmission characteristics of the connector are affected. Generally, the connector is internally provided with a grounding plate and the grounding plate is connected with the grounding terminal in the conductive terminal to reduce the influence of electromagnetic interference or crosstalk phenomenon on the connector.
In the prior art, the grounding plate can be mounted in the middle of two rows of conductive terminals in the connector. When the male and female ends of the connector are connected with each other, the two rows of conductive terminals of the female connector are spread because the circuit board of the male end is inserted between the two, and at the moment, the grounding sheet can not be completely connected with the grounding terminal of the conductive terminal to cause poor contact, so that the grounding sheet can not effectively block interference to influence the transmission characteristic of the connector. In another prior art, the grounding strips are respectively mounted on the outer sides of two rows of conductive terminals in the connector, and the elastic arms of the grounding strips are connected with the elastic parts of the grounding terminals of the conductive terminals. When the male and female ends of the connector are connected, the elastic parts of the two rows of conductive terminals and the elastic arms of the grounding plate of the connector are pressed and spread. However, the elastic arm of the grounding plate may be deformed by pressing after the connector is continuously connected and removed, and further cannot be completely connected to the grounding terminal of the conductive terminal, thereby affecting the transmission characteristics of the connector.
Therefore, there is a need for an improved connector structure to ensure that the transmission characteristics of the connector can be maintained during connection.
SUMMERY OF THE UTILITY MODEL
Therefore, an object of the present invention is to provide a card edge connector structure, which has a simple structure and is convenient for assembly and disassembly operations, and can solve the problems of the prior art, effectively prevent interference, and also ensure the transmission characteristics of the connector.
In order to achieve the above object, the utility model discloses a card edge connector structure, its characterized in that includes:
an insulating housing;
a terminal assembly disposed in the insulative housing, further comprising:
a first terminal set including a plurality of first signal terminals, at least one first ground terminal, and a first terminal holder, the first terminal holder including at least one first groove, the first signal terminals and the first ground terminal being fixed and arranged in parallel by the first terminal holder, and the first groove of the first terminal holder being located at a position corresponding to the first ground terminal so that the first ground terminal is exposed outside the first terminal holder; and
a second terminal set, disposed opposite to the first terminal set, including a plurality of second signal terminals, at least one second ground terminal, and a second terminal fixing member, where the second terminal fixing member includes at least one second groove, the second signal terminals and the second ground terminal are fixed and arranged in parallel by the second terminal fixing member, and the position of the second groove of the second terminal fixing member corresponds to the position of the second ground terminal, so that the second ground terminal is exposed outside the second terminal fixing member;
a first ground plate disposed between the insulating housing and the first terminal group, the first ground plate including at least one first resilient arm contacting the first ground terminal through the first groove; and
and the second grounding sheet is arranged between the insulating shell and the second terminal group, and comprises at least one second elastic arm which is contacted with the second grounding terminal through a second groove.
Each of the first signal terminals, each of the second signal terminals, the first ground terminal and the second ground terminal includes a fixing portion and an elastic portion, the fixing portions of the first signal terminals and the first ground terminal are fixed to the first terminal fixing member, and the fixing portions of the second signal terminals and the second ground terminal are fixed to the second terminal fixing member.
The first elastic arm of the first grounding piece contacts the fixing part of the first grounding terminal, and the second elastic arm of the second grounding piece contacts the fixing part of the second grounding terminal.
Wherein the opening direction of the first groove of the first terminal holding member faces the first ground plate, and the opening direction of the second groove of the second terminal holding member faces the second ground plate.
The arrangement of the first signal terminals and the first ground terminals of the first terminal set is different from the arrangement of the second signal terminals and the second ground terminals of the second terminal set.
The arrangement of the first elastic arms of the first grounding piece corresponds to the arrangement of the first grounding terminals of the first terminal group, and the arrangement of the second elastic arms of the second grounding piece corresponds to the arrangement of the second grounding terminals of the second terminal group.
One end of a first elastic arm of the first grounding piece is connected with the first grounding piece, the other end of the first elastic arm is suspended, one end of a second elastic arm of the second grounding piece is connected with the second grounding piece, and the other end of the second elastic arm is suspended.
Wherein, the two ends of the first elastic arm of the first grounding piece are connected with the first grounding piece, and the two ends of the second elastic arm of the second grounding piece are connected with the second grounding piece.
The first elastic arm of the first grounding plate and the second elastic arm of the second grounding plate are formed in a stamping mode.
Wherein, the first elastic arm of the first grounding piece and the second elastic arm of the second grounding piece are in a shape of a straight line, an L shape, an inverted U shape or an arc.
The first elastic arm and the second elastic arm are respectively contacted with the first grounding terminal and the second grounding terminal, and the contact positive force is larger than 15 g.
To sum up, the utility model discloses a card edge connector structure can realize following technological effect:
1. the structure is simple, and the operation, the assembly and the disassembly are convenient;
2. the fixing part of the grounding terminal which is stably contacted with the terminal group through the groove of the terminal fixing part by the elastic arm of the grounding piece can effectively prevent interference and can keep transmission characteristics.
Drawings
FIG. 1: the exploded view of the card edge connector structure of the present invention is shown.
FIG. 2: the schematic diagram of the terminal set of the card edge connector structure of the present invention is shown.
FIG. 3A: the top view of the card edge connector structure of the present invention is shown.
FIG. 3B: a cross-sectional view along the line a-a in fig. 3A is shown.
FIG. 4: the first grounding plate of the embodiment of the card edge connector structure of the present invention is illustrated.
Fig. 5A, 5B, 5C, and 5D: the different structural diagrams of the first grounding plate in an embodiment of the card edge connector structure of the present invention are shown.
Detailed Description
Referring to fig. 1 and fig. 2 together, fig. 1 is an exploded view of the card edge connector structure 10 of the present invention, and fig. 2 is a schematic view of the terminal assembly 2 of the card edge connector structure 10 of the present invention. As shown in fig. 1, the card edge connector structure 10 of the present embodiment includes an insulating housing 1, a terminal assembly 2, a first ground plate 3, and a second ground plate 4. The terminal assembly 2 includes a first terminal set 21 and a second terminal set 22, and is disposed in the insulating housing 1, and the second terminal set 22 is disposed opposite to the first terminal set 21. The first grounding plate 3 includes at least one first resilient arm 31 and is disposed between the insulative housing 1 and the first terminal set 21, and the second grounding plate 4 includes at least one second resilient arm 41 and is disposed between the insulative housing 1 and the second terminal set 22. In practice, the structure in the insulating housing 1 of the card edge connector structure 10 is arranged in the order of the first grounding plate 3, the first terminal set 21, the second terminal set 22 and the second grounding plate 4. Therefore, the first and second ground pads 3 and 4 can contact the first and second terminal groups 21 and 22, respectively, to be grounded.
As shown in fig. 1 and fig. 2, the first terminal set 21 includes a plurality of first signal terminals 211, at least one first ground terminal 212, and a first terminal fixing member 213. The first terminal fixing member 213 includes at least one first groove 214, and a plurality of first signal terminals 211 and at least one first ground terminal 212 are fixed and arranged in parallel by the first terminal fixing member 213. In practice, the first signal terminal 211 is a communication terminal for conducting and connecting so that the connector can transmit. The first ground terminal 212 is used for grounding and dissipating noise, electromagnetic radiation and other interference. The first signal terminals 211 and the first ground terminals 212 are arranged in a row in parallel and staggered, and the first terminal fixing members 213 are used to fix the first signal terminals 211 and the first ground terminals 212 to form the first terminal set 21.
The second terminal set 22 includes a plurality of second signal terminals 221, at least one second ground terminal 222, and a second terminal fixture 223. The second terminal fixture 223 includes at least one second groove 224, and a plurality of second signal terminals 221 and at least one second ground terminal 222 are fixed and arranged in parallel by the second terminal fixture 223. The functions and structures of the second terminal set 22, the second signal terminal 221, the second ground terminal 222 and the second terminal fixing member 223 are substantially the same as those of the first terminal set 21, the first signal terminal 211, the first ground terminal 212 and the first terminal fixing member 213, and are not repeated herein. However, please note that in the present embodiment, the arrangement of the second signal terminals 221 and the second ground terminals 222 is different from the arrangement of the first signal terminals 211 and the first ground terminals 212, for example: the first ground terminal 212 is located at the 1 st, 5 th and 7 th positions in the first terminal group 21, and the second ground terminal 222 is located at the 2 nd, 6 th and 8 th positions in the second terminal group 22. However, in practice, the position of the second ground terminal 222 in the second terminal set 22 and the position of the first ground terminal 212 in the first terminal set 21 may be partially the same or completely the same.
As described above, the first terminal fixing member 213 is used for fixing the first signal terminal 211 and the first ground terminal 212 to form the first terminal set 21, and the second terminal fixing member 223 is used for fixing the second signal terminal 221 and the second ground terminal 222 to form the second terminal set 22. In practice, the first terminal holder 213 and the second terminal holder 223 may be manufactured by a mold forming method. The material of the first terminal fixing member 213 and the second terminal fixing member 223 may be an insulating material (e.g., plastic, rubber). The first terminal fixing member 213 and the second terminal fixing member 223 are further fixed to the fixing portion 227 of each terminal, so that the elastic portion 228 exposed to each terminal of the first terminal fixing member 213 and the second terminal fixing member 223 can contact other components for transmission.
Further, the first terminal holding member 213 includes at least one first groove 214, and the second terminal holding member 223 includes at least one second groove 224. In the present embodiment, the position of the first groove 214 of the first terminal holder 213 corresponds to the position of the first ground terminal 212 of the first terminal group 21, and the position of the second groove 224 of the second terminal holder 223 corresponds to the position of the second ground terminal 222 of the second terminal group 22. In practice, the first groove 214 and the second groove 224 may be formed by cutting or molding. Therefore, the first ground terminal 212 of the first terminal set 21 is partially exposed out of the first terminal holder 213, and the second ground terminal 222 of the second terminal set 22 is partially exposed out of the second terminal holder 223. Further, the fixing portion 227 of the first ground terminal 212 of the first terminal set 21 is partially exposed out of the first terminal fixing member 213, and the fixing portion 227 of the second ground terminal 222 of the second terminal set 22 is partially exposed out of the second terminal fixing member 223.
In the present embodiment, the opening directions of the first groove 214 and the second groove 224 face the first grounding plate 3 and the second grounding plate 4, respectively, so that the first elastic arm 31 of the first grounding plate 3 and the second elastic arm 41 of the second grounding plate 4 can contact the fixing portion 227 of the first grounding terminal 212 and the fixing portion 227 of the second grounding terminal 222 through the first groove 214 and the second groove 224, respectively. Since the fixing portions 227 of the terminals in the first terminal group 21 and the second terminal group 22 are fixed by the first terminal fixing member 213 and the second terminal fixing member 223, and the fixing portions 227 of the terminals are not easily deformed by being attached or pressed, the first resilient arm 31 of the first ground plate 3 and the second resilient arm 41 of the second ground plate 4 can be more stably contacted with the first ground terminal 212 and the second ground terminal 222, so that interference can be effectively prevented and the transmission characteristics of the connector can be ensured.
In practice, the first grounding plate 3 and the second grounding plate 4 may be made of conductive metal, and the first elastic arm 31 and the second elastic arm 41 are respectively configured to protrude vertically from the plane of the first grounding plate 3 and the plane of the second grounding plate 4. Therefore, when the card edge connector structure 10 is assembled, the first elastic arm 13 and the second elastic arm 41 respectively contact the first ground terminal 212 and the second ground terminal 222 through the first groove 214 and the second groove 224. In the present embodiment, except that the positions of the first grooves 214 of the first terminal fixing member 213 and the positions of the second grooves 224 of the second terminal fixing member 223 correspond to the positions of the first ground terminals 212 of the first terminal group 21 and the positions of the second ground terminals 222 of the second terminal group 22, respectively, the arrangement of the first resilient arms 31 of the first ground plate 3 and the arrangement of the second resilient arms 41 of the second ground plate 4 also correspond to the arrangement of the first ground terminals 212 of the first terminal group 21 and the arrangement of the second ground terminals 222 of the second terminal group 22, respectively.
Since the first elastic arm 31 of the first grounding plate 3 and the second elastic arm 41 of the second grounding plate 4 respectively contact the fixing portions 227 of the first grounding terminal 212 and the second grounding terminal 222, and the first terminal fixing member 213 and the second terminal fixing member 223 fix the fixing portions 227 of the first grounding terminal 212 and the second grounding terminal 222, compared with the prior art, when the male end and the female end of the connector are connected, the deformation amount of the fixing portions 227 of the first grounding terminal 212 and the second grounding terminal 222 is smaller than that of the elastic portions 228, so that the first elastic arm 31 of the first grounding plate 3 and the second elastic arm 41 of the second grounding plate 4 can more stably contact the first grounding terminal 212 and the second grounding terminal 222, and further effectively prevent interference.
When the connector is connected or removed, each terminal of the terminal assembly is pressed, and if the terminal assembly reaches a certain number of times, the terminal assembly may deform, which may cause poor contact of the elastic arm of the grounding plate. Therefore, the resilient arms of the grounding plate are usually designed to deform and contact the grounding terminal when the connector is assembled, so as to ensure that the resilient arms of the grounding plate can stably contact the grounding terminal. In the present embodiment, the contact positive force of the first elastic arm 31 and the second elastic arm 41 contacting the first ground terminal 212 and the second ground terminal 222 is greater than 15 g.
Referring to fig. 3A, fig. 3B and fig. 4, fig. 3A is a top view of the card edge connector structure 10 of the present invention, fig. 3B is a cross-sectional view of a line a-a in fig. 3A, and fig. 4 is a schematic diagram of the first grounding plate 3 of the card edge connector structure 10 according to an embodiment of the present invention. As shown in fig. 3, one end of the first elastic arm 31 of the first grounding plate 3 is connected to the first grounding plate 3, and the other end of the first elastic arm 31 is suspended, while one end of the second elastic arm 41 of the second grounding plate 4 is connected to the second grounding plate 4, and the other end of the second elastic arm 41 is suspended. In the embodiment, after the card edge connector structure 10 is assembled, one end of the elastic arm 31, 41 connected to the grounding strip 3, 4 is located below the grounding strip 3, 4, i.e. one end of the elastic portion 228 close to the terminal, but in practice, this is not a limitation, and one end of the elastic arm 31, 41 connected to the grounding strip 3, 4 may also be located above the grounding strip 3, 4. In one embodiment, as shown in fig. 4, both ends of the first elastic arm 31 of the first grounding plate 3 can be connected to the first grounding plate 3, and both ends of the second elastic arm of the second grounding plate can be connected to the second grounding plate (not shown).
In another embodiment, the first elastic arm 31 of the first grounding plate 3 and the second elastic arm 41 of the second grounding plate 4 can be integrally formed by stamping. In yet another embodiment, the first grounding plate 3 includes a first grounding plate body and a first grounding spring, and the second grounding plate 4 includes a second grounding plate body and a second grounding spring, wherein the first grounding spring and the second grounding spring are respectively assembled on the first grounding plate 3 and the second grounding plate 4.
Referring to fig. 5A, fig. 5B, fig. 5C and fig. 5D, fig. 5A, fig. 5B, fig. 5C and fig. 5D are schematic diagrams illustrating the first grounding pieces 3 ', 3 "' and 3" ", according to an embodiment of the card edge connector structure 10 of the present invention. In an embodiment, the first elastic arms 31 ', 31 ", 31'" and 31 "" of the first grounding plate 3 ', 3 ", 3'" and 3 "" and the second elastic arm of the second grounding plate may have a straight shape, an L shape, a reversed-u shape, a circular arc shape or a combination thereof (the first grounding plate 3 is taken as an example in the figure). In practice, in the L-shaped, the n-shaped and the arc-shaped elastic arms, one end of the elastic arm may be connected to the grounding plate, and the other end of the elastic arm is suspended, or both ends may be connected to the grounding plate.
To sum up, the utility model provides a card edge connector structure passes through the slot of terminal mounting by the bullet arm of grounding piece and stably contacts the fixed part in the ground terminal of terminal group can prevent to disturb effectively to can keep transmission characteristic.
The foregoing detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and not to limit the scope of the invention by the preferred embodiments disclosed above. On the contrary, the intention is to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. The scope of the claims is thus to be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the scope of the appended claims.
Claims (11)
1. An edge connector structure, comprising:
an insulating housing;
a terminal assembly disposed in the insulative housing, further comprising:
a first terminal set including a plurality of first signal terminals, at least one first ground terminal, and a first terminal holder, the first terminal holder including at least one first groove, the first signal terminals and the first ground terminal being fixed and arranged in parallel by the first terminal holder, and the first groove of the first terminal holder being located at a position corresponding to the first ground terminal so that the first ground terminal is exposed outside the first terminal holder; and
a second terminal set, disposed opposite to the first terminal set, including a plurality of second signal terminals, at least one second ground terminal, and a second terminal fixing member, where the second terminal fixing member includes at least one second groove, the second signal terminals and the second ground terminal are fixed and arranged in parallel by the second terminal fixing member, and the position of the second groove of the second terminal fixing member corresponds to the position of the second ground terminal, so that the second ground terminal is exposed outside the second terminal fixing member;
a first ground plate disposed between the insulating housing and the first terminal group, the first ground plate including at least one first resilient arm contacting the first ground terminal through the first groove; and
and the second grounding sheet is arranged between the insulating shell and the second terminal group, and comprises at least one second elastic arm which is contacted with the second grounding terminal through a second groove.
2. The card edge connector structure of claim 1, wherein each of the first signal terminal, each of the second signal terminal, the first ground terminal and the second ground terminal comprises a fixing portion and an elastic portion, the fixing portions of the first signal terminal and the first ground terminal are fixed to the first terminal fixing member, and the fixing portions of the second signal terminal and the second ground terminal are fixed to the second terminal fixing member.
3. The card edge connector structure of claim 2, wherein the first resilient arm of the first ground plate contacts the retention portion of the first ground terminal and the second resilient arm of the second ground plate contacts the retention portion of the second ground terminal.
4. The card edge connector structure of claim 1, wherein an opening direction of the first groove of the first terminal holder faces the first ground plate, and an opening direction of the second groove of the second terminal holder faces the second ground plate.
5. The card edge connector structure of claim 1, wherein the first signal terminals and the first ground terminals of the first terminal set are arranged in a different manner than the second signal terminals and the second ground terminals of the second terminal set.
6. The card edge connector structure of claim 5, wherein the first resilient arms of the first ground plate are arranged in a manner corresponding to the arrangement of the first ground terminals of the first terminal group, and the second resilient arms of the second ground plate are arranged in a manner corresponding to the arrangement of the second ground terminals of the second terminal group.
7. The card edge connector structure of claim 1, wherein one end of the first elastic arm of the first grounding plate is connected to the first grounding plate and the other end of the first elastic arm is suspended, one end of the second elastic arm of the second grounding plate is connected to the second grounding plate and the other end of the second elastic arm is suspended.
8. The card edge connector structure of claim 1, wherein both ends of the first resilient arm of the first ground plate are connected to the first ground plate, and both ends of the second resilient arm of the second ground plate are connected to the second ground plate.
9. The card edge connector structure of claim 1, wherein the first resilient arm of the first ground plate and the second resilient arm of the second ground plate are formed by stamping.
10. The card edge connector structure of claim 1, wherein the first resilient arm of the first grounding plate and the second resilient arm of the second grounding plate are in the shape of a straight line, an L, a U, or an arc.
11. The card edge connector structure of claim 1, wherein the first elastic arm and the second elastic arm contact the first ground terminal and the second ground terminal respectively with a contact normal force greater than 15 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920465710.XU CN209896378U (en) | 2019-04-09 | 2019-04-09 | Card edge connector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920465710.XU CN209896378U (en) | 2019-04-09 | 2019-04-09 | Card edge connector structure |
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| Publication Number | Publication Date |
|---|---|
| CN209896378U true CN209896378U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920465710.XU Active CN209896378U (en) | 2019-04-09 | 2019-04-09 | Card edge connector structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350120A (en) * | 2020-11-05 | 2021-02-09 | 东莞立讯技术有限公司 | Grounding structure and connector |
| CN116454667A (en) * | 2023-03-20 | 2023-07-18 | 东莞市信翰精密工业有限公司 | Single-side contact connector assembly |
-
2019
- 2019-04-09 CN CN201920465710.XU patent/CN209896378U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350120A (en) * | 2020-11-05 | 2021-02-09 | 东莞立讯技术有限公司 | Grounding structure and connector |
| CN116454667A (en) * | 2023-03-20 | 2023-07-18 | 东莞市信翰精密工业有限公司 | Single-side contact connector assembly |
| CN116454667B (en) * | 2023-03-20 | 2023-11-10 | 东莞市信翰精密工业有限公司 | Single-side contact connector assembly |
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