Patent Application
20250087946
This patent application claims priority of a Chinese Patent Application No. 202311157249.9, filed on Sep. 7, 2023 and titled “TONGUE PLATE”, the entire content of which is incorporated herein by reference.
The present disclosure relates to a tongue plate, which belongs to the technical field of connector components.
A connector in the related art includes a tongue plate on which a plurality of metal conductive pads are provided. The plurality of metal conductive pads generally include a plurality of signal conductive pads and a plurality of ground conductive pads.
As the signal transmission quality of the connector continues to improve, there is still room for improvement in the tongue plate in the related art.
An object of the present disclosure is to provide a tongue plate with better signal shielding effect.
In order to achieve the above object, the present disclosure adopts the following technical solution: a tongue plate, configured to be inserted into a slot of a mating connector, including: a plurality of first conductive pads including a first signal terminal group, a first ground terminal located on one side of the first signal terminal group along a first direction, and a second ground terminal located on another side of the first signal terminal group along the first direction; and a conductive shielding assembly including a first conductive shielding plate in contact with the first ground terminal, a second conductive shielding plate in contact with the second ground terminal, and a connecting plate connecting the first conductive shielding plate and the second conductive shielding plate: the first conductive shielding plate and the second conductive shielding plate respectively extending along a second direction; the first conductive shielding plate, the second conductive shielding plate and the connecting plate jointly forming a U-shaped first conductive shielding cavity; the first signal terminal group being located at a first opening of the first conductive shielding cavity along a third direction: wherein each two of the first direction, the second direction and the third direction are perpendicular to each other.
In order to achieve the above object, the present disclosure adopts the following technical solution: a tongue plate, made of a printed circuit board and configured to be inserted into a mating connector, the tongue plate including: a plurality of first conductive pads including a first signal terminal group, a first ground terminal located on one side of the first signal terminal group along a first direction, and a second ground terminal located on another side of the first signal terminal group along the first direction; and a conductive shielding assembly including a first conductive shielding plate in contact with the first ground terminal, a second conductive shielding plate in contact with the second ground terminal, and a connecting plate connecting the first conductive shielding plate and the second conductive shielding plate; the first conductive shielding plate extending substantially all the way along the first ground terminal so as to be overlapped with a majority length of the first ground terminal along a second direction; the second conductive shielding plate extending substantially all the way along the second ground terminal so as to be overlapped with a majority length of the second ground terminal along the second direction: the first conductive shielding plate, the second conductive shielding plate and the connecting plate jointly forming a first conductive shielding cavity: the first signal terminal group being located at a first opening of the first conductive shielding cavity along a third direction; wherein each two of the first direction, the second direction and the third direction are perpendicular to each other.
Compared with the prior art, the tongue plate of the present disclosure includes the conductive shielding assembly. The conductive shielding assembly includes the first conductive shielding plate in contact with the first ground terminal, the second conductive shielding plate in contact with the second ground terminal, and the connecting plate connecting the first conductive shielding plate and the second conductive shielding plate. The first conductive shielding plate, the second conductive shielding plate and the connecting plate jointly form the first conductive shielding cavity. The first signal terminal group is located at the first opening of the first conductive shielding cavity along the third direction. In this way, the first signal terminal group of the present disclosure can be isolated from other signals under the function of the first conductive shielding cavity, thereby reducing the signal crosstalk and improving the quality of signal transmission.
Exemplary embodiments will be described in detail here, examples of which are shown in drawings. When referring to the drawings below, unless otherwise indicated, same numerals in different drawings represent the same or similar elements. The examples described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.
The terminology used in this application is only for the purpose of describing particular embodiments, and is not intended to limit this application. The singular forms “a”, “said”, and “the” used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings.
It should be understood that the terms “first”, “second” and similar words used in the specification and claims of this application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, “an” or “a” and other similar words do not mean a quantity limit, but mean that there is at least one; “multiple” or “a plurality of” means two or more than two. Unless otherwise noted, “front”, “rear”, “lower” and/or “upper” and similar words are for ease of description only and are not limited to one location or one spatial orientation. Similar words such as “include” or “comprise” mean that elements or objects appear before “include” or “comprise” cover elements or objects listed after “include” or “comprise” and their equivalents, and do not exclude other elements or objects. The term “a plurality of” mentioned in the present disclosure includes two or more.
Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
Referring to
In the illustrated embodiment of the present disclosure, the tongue plate 100 includes a plurality of first conductive pads 10, a plurality of second conductive pads 20 and a conductive shielding assembly 30. The plurality of first conductive pads 10 include a plurality of first signal terminal groups DP1, a plurality of first ground terminals G1 and a plurality of second ground terminals G2. In the illustrated embodiment of the present disclosure, each first signal terminal group DP1 includes a first signal terminal S1 and a second signal terminal S2. In order to increase the rate of signal transmission, the first signal terminal S1 and the second signal terminal S2 form a first differential pair. Along a first direction A1-A1 (for example, a left-right direction), one side of each first signal terminal group DP1 is associated with one first ground terminal G1, and the other side of each first signal terminal group DP1 is associated with one second ground terminal G2. In other words, each first signal terminal group DP1 is located between one first ground terminal G1 and one second ground terminal G2 along the first direction A1-A1. The first signal terminal S1, the second signal terminal S2, the first ground terminal G1 and the second ground terminal G2 are located in a same plane.
Referring to
Similarly, the second signal terminal S2 includes a second mating portion 11b, a second connecting portion 12b connected to the second mating portion 11b, and a second tail portion 13b connected to the second connecting portion 12b. The second connecting portion 12b is connected between the second mating portion 11b and the second tail portion 13b along the second direction A2-A2. In the illustrated embodiment of the present disclosure, the second mating portion 11b is rectangular in shape and is configured to be in contact with a conductive terminal of the mating connector. The second tail portion 13b is also rectangular in shape and is configured to be connected with, for example, a cable (not shown). A centerline of the second mating portion 11b and a centerline of the second tail portion 13b are staggered along the second direction A2-A2. A width of the second connecting portion 12b is less than a width of the second mating portion 11b, and also less than a width of the second tail portion 13b. The second connecting portion 12b is oblique compared to the second mating portion 11b and the second tail portion 13b.
The first ground terminal G1 includes a first contact portion 11c, a first connection portion 12c connected to the first contact portion 11c, and a first tail end portion 13c connected to the first connection portion 12c. The first connection portion 12c is connected between the first contact portion 11c and the first tail end portion 13c along the second direction A2-A2. In the illustrated embodiment of the present disclosure, the first contact portion 11c is rectangular in shape and is configured to be in contact with a conductive terminal of the mating connector. The first tail end portion 13c is also rectangular in shape and is configured to be connected with, for example, a cable (not shown). A centerline of the second mating portion 11b is staggered or aligned with a centerline of the second tail portion 13b along the second direction A2-A2. A width of the first connection portion 12c along the first direction A1-A1 is greater than a width of the first contact portion 11c along the first direction A1-A1, and also greater than a width of the first tail end portion 13c along the first direction A1-A1.
The second ground terminal G2 includes a second contact portion 11d, a second connection portion 12d connected to the second contact portion 11d, and a second tail end portion 13d connected to the second connection portion 12d. The second connection portion 12d is connected between the second contact portion 11d and the second tail end portion 13d along the second direction A2-A2. In the illustrated embodiment of the present disclosure, the second contact portion 11d is rectangular in shape and is configured to be in contact with a conductive terminal of the mating connector. The second tail end portion 13d is also rectangular in shape and is configured to be connected with, for example, a cable (not shown). A centerline of the second mating portion 11b is staggered or aligned with a centerline of the second tail portion 13b along the second direction A2-A2. A width of the second connection portion 12d along the first direction A1-A1 is greater than a width of the second contact portion 11d along the first direction A1-A1, and also greater than a width of the second tail end portion 13d along the first direction A1-A1.
In the illustrated embodiment of the present disclosure, the first contact portion 11c of the first ground terminal G1 and the second contact portion 11d of the second ground terminal G2 both extend forwardly to protrude beyond a first front end of the first mating portion 11a of the first signal terminal S1 and a second front end of the second mating portion 11b of the second signal terminal S2, so that the first contact portion 11c of the first ground terminal G1 and the second contact portion 11d of the second ground terminal G2 are prior to the first mating portion 11a of the first signal terminal S1 and the second mating portion 11b of the second signal terminal S2 to be in contact with the conductive terminals of the mating connector.
A distance between the centerline of the first tail portion 13a of the first signal terminal S1 and the centerline of the second tail portion 13b of the second signal terminal S2 is greater than a distance between the centerline of the first mating portion 11a of the first signal terminal S1 and the centerline of the second mating portion 11b of the second signal terminal S2. Therefore, it is beneficial to better connect the first tail portion 13a of the first signal terminal S1 and the second tail portion 13b of the second signal terminal S2 with the cables, and avoid mutual interference.
The first connecting portion 12a of the first signal terminal S1 protrudes toward the second connecting portion 12b of the second signal terminal S2 along the second direction A2-A2, so that a first recess 14a is formed on a side of the first connecting portion 12a away from the second connecting portion 12b. The first connection portion 12c of the first ground terminal G1 at least partially protrudes into the first recess 14a.
Similarly, the second connecting portion 12b of the second signal terminal S2 protrudes toward the first connecting portion 12a of the first signal terminal S1 along the second direction A2-A2, so that a second recess 14b is formed on a side of the second connecting portion 12b away from the first connecting portion 12a. The second connection portion 12d of the second ground terminal G2 at least partially protrudes into the second recess 14b.
In the illustrated embodiment of the present disclosure, each second signal terminal group DP2 includes a third signal terminal S3 and a fourth signal terminal S4. In order to increase the rate of signal transmission, the third signal terminal S3 and the fourth signal terminal S4 form a second differential pair. Along the first direction A1-A1 (for example, the left-right direction), one side of each second signal terminal group DP2 is associated with one third ground terminal G3, and the other side of each second signal terminal group DP2 is associated with one fourth ground terminal G4. In other words, each second signal terminal group DP2 is located between one third ground terminal G3 and one fourth ground terminal G4 along the first direction A1-A1. The third signal terminal S3, the fourth signal terminal S4, the third ground terminal G3 and the fourth ground terminal G4 are located in a same plane.
Referring to
Similarly, the fourth signal terminal S4 includes a fourth mating portion 21b, a fourth connecting portion 22b connected to the fourth mating portion 21b, and a fourth tail portion 23b connected to the fourth connecting portion 22b. The fourth connecting portion 22b is connected between the fourth mating portion 21b and the fourth tail portion 23b along the second direction A2-A2. In the illustrated embodiment of the present disclosure, the fourth mating portion 21b is rectangular in share and is configured to be in contact with a conductive terminal of the mating connector. The fourth tail portion 23b is also rectangular in shape and is configured to be connected with, for example, a cable (not shown). A centerline of the fourth mating portion 21b and a centerline of the fourth tail portion 23b are staggered along the second direction A2-A2. A width of the fourth connecting portion 22b is less than a width of the fourth mating portion 21b, and also less than a width of the fourth tail portion 23b. The fourth connecting portion 22b is oblique compared to the fourth mating portion 21b and the fourth tail portion 23b.
The third ground terminal G3 includes a third contact portion 21c, a third connection portion 22c connected to the third contact portion 21c, and a third tail end portion 23c connected to the third connection portion 22c. The third connection portion 22c is connected between the third contact portion 21c and the third tail end portion 23c along the second direction A2-A2. In the illustrated embodiment of the present disclosure, the third contact portion 21c is rectangular in shape and is configured to be in contact with a conductive terminal of the mating connector. The third tail end portion 23c is also rectangular in shape and is configured to be connected with, for example, a cable (not shown). A centerline of the fourth mating portion 21b and a centerline of the fourth tail portion 23b are staggered or aligned along the second direction A2-A2. A width of the third connection portion 22c along the first direction A1-A1 is greater than a width of the third contact portion 21c along the first direction A1-A1, and also greater than a width of the third tail end portion 23c along the first direction A1-A1.
The fourth ground terminal G4 includes a fourth contact portion 21d, a fourth connection portion 22d connected to the fourth contact portion 21d, and a fourth tail end portion 23d connected to the fourth connection portion 22d. The fourth connection portion 22d is connected between the fourth contact portion 21d and the fourth tail end portion 23d along the second direction A2-A2. In the illustrated embodiment of the present disclosure, the fourth contact portion 21d is rectangular in shape and is configured to be in contact with a conductive terminal of the mating connector. The fourth tail end portion 23d is also rectangular in shape and is configured to be connected with, for example, a cable (not shown). A centerline of the fourth mating portion 21b and a centerline of the fourth tail portion 23b are staggered or aligned along the second direction A2-A2. A width of the fourth connection portion 22d along the first direction A1-A1 is greater than a width of the fourth contact portion 21d along the first direction A1-A1, and also greater than a width of the fourth tail end portion 23d along the first direction A1-A1.
In the embodiment shown in the present disclosure, the third contact portion 21c of the third ground terminal G3 and the fourth contact portion 21d of the fourth ground terminal G4 both extend forwardly to protrude beyond a third front end of the third mating portion 21a of the third signal terminal S3 and a fourth front end of the fourth mating portion 21b of the fourth signal terminal S4, so that the third contact portion 21c of the third ground terminal G3 and the fourth contact portion 21d of the fourth ground terminal G4 are prior to the third mating portion 21a of the third signal terminal S3 and the fourth mating portion 21b of the fourth signal terminal S4 to be in contact with the conductive terminals of the mating connector.
A distance between the centerline of the third tail portion 23a of the third signal terminal S3 and the centerline of the fourth tail portion 23b of the fourth signal terminal S4 is greater than a distance between the centerline of the third mating portion 21a of the third signal terminal S3 and the centerline of the fourth mating portion 21b of the fourth signal terminal S4. Therefore, it is beneficial to better connect the third tail portion 23a of the third signal terminal S3 and the fourth tail portion 23b of the fourth signal terminal S4 with the cables, and avoid mutual interference.
The third connecting portion 22a of the third signal terminal S3 protrudes toward the fourth connecting portion 22b of the fourth signal terminal S4 along the second direction A2-A2, so that a third recess 24a is formed on a side of the third connecting portion 22a away from the fourth connecting portion 22b. The third connection portion 22c of the third ground terminal G3 at least partially protrudes into the third recess 24a.
Similarly, the fourth connecting portion 22b of the fourth signal terminal S4 protrudes toward the third connecting portion 22a of the third signal terminal S3 along the second direction A2-A2, so that a fourth recess 24b is formed on a side of the fourth connecting portion 22b away from the third connecting portion 22a. The fourth connection portion 22d of the fourth ground terminal G4 at least partially protrudes into the fourth recess 24b.
The conductive shielding assembly 30 includes a first conductive shielding plate 31 in contact with the first ground terminal G1, a second conductive shielding plate 32 in contact with the second ground terminal G2, and a connecting plate 35 connecting the first conductive shielding plate 31 and the second conductive shielding plate 32. Each of the first conductive shielding plate 31 and the second conductive shielding plate 32 extends along the second direction A2-A2, and extend for a greater length. In other words, the first conductive shielding plate 31 extends substantially all the way along the first ground terminal G1 so as to be overlapped with a majority length of the first ground terminal G1 along the second direction A2-A2; and the second conductive shielding plate 31 extends substantially all the way along the second ground terminal G1 so as to be overlapped with a majority length of the second ground terminal G1 along the second direction A2-A2. The first conductive shielding plate 31, the second conductive shielding plate 32 and the connecting plate 35 jointly form a U-shaped first conductive shielding cavity 301. The first signal terminal group DP1 is located at a first opening 3011 of the first conductive shielding cavity 301 along a third direction A3-A3 (for example, a vertical direction). Each two of the first direction A1-A1, the second direction A2-A2 and the third direction A3-A3 are perpendicular to each other.
Specifically, in the embodiment shown in the present disclosure, a top surface of the first conductive shielding plate 31 is in contact with a bottom surface of the first contact portion 11c of the first ground terminal G1, a bottom surface of the first connection portion 12c of the first ground terminal G1 and a bottom surface of the first tail end portion 13c of the first ground terminal G1. A bottom surface of the first conductive shielding plate 31 is in contact with a top surface of the connecting plate 35.
In the embodiment shown in the present disclosure, a top surface of the second conductive shielding plate 32 is in contact with a bottom surface of the second contact portion 11d of the second ground terminal G2, a bottom surface of the second connection portion 12d of the second ground terminal G2, and a bottom surface of the second tail end portion 13d of the second ground terminal G2. A bottom surface of the second conductive shielding plate 32 is in contact with the top surface of the connecting plate 35.
Similarly, the conductive shielding assembly 30 includes a third conductive shielding plate 33 in contact with the third ground terminal G3 and a fourth conductive shielding plate 34 in contact with the fourth ground terminal G4. The connecting plate 35 connects the third conductive shielding plate 33 and the fourth conductive shielding plate 34. The third conductive shielding plate 33 and the fourth conductive shielding plate 34 respectively extend along the second direction A2-A2, and extend for a greater length. The third conductive shielding plate 33, the fourth conductive shielding plate 34 and the connecting plate 35 jointly form a U-shaped second conductive shielding cavity 302. The second signal terminal group DP2 is located at the second opening 3021 of the second conductive shielding cavity 302 along the third direction A3-A3.
In the embodiment shown in the present disclosure, a bottom surface of the third conductive shielding plate 33 is in contact with a top surface of the third contact portion 21c of the third ground terminal G3, a top surface of the third connection portion 22c of the third ground terminal G3 and a top surface of the third tail end portion 23c of the third ground terminal G3. A top surface of the third conductive shielding plate 33 is in contact with a bottom surface of the connecting plate 35.
In the embodiment shown in the present disclosure, a bottom surface of the fourth conductive shielding plate 34 is in contact with a top surface of the fourth contact portion 21d of the fourth ground terminal G4, a top surface of the fourth connection portion 22d of the fourth ground terminal G4 and a top surface of the fourth tail end portion 23d of the fourth ground terminal G4. A top surface of the fourth conductive shielding plate 34 is in contact with the bottom surface of the connecting plate 35.
In the illustrated embodiment of the present disclosure, the plurality of first conductive pads 10, the first conductive shielding plate 31 and the second conductive shielding plate 32 are located on one side (for example, an upper side) of the connecting plate 35 along the third direction A3-A3. The plurality of second conductive pads 20, the third conductive shielding plate 33 and the fourth conductive shielding plate 34 are located on another side (for example, a lower side) of the connecting plate 35 along the third direction A3-A3.
Referring to
In the illustrated embodiment of the present disclosure, the first conductive shielding plate 31, the first intermediate plate 353 and the third conductive shielding plate 33 are sequentially disposed along the third direction A3-A3 and aligned with each other. The second conductive shielding plate 32, the second intermediate plate 354 and the fourth conductive shielding plate 34 are sequentially disposed along the third direction A3-A3 and aligned with each other.
In the illustrated embodiment of the present disclosure, the plurality of first conductive pads 10 and the plurality of second conductive pads 20 are aligned in a one-to-one corresponding manner along the third direction A3-A3. The first conductive pads 10 and the second conductive pads 20 at aligned positions are the same.
Referring to
It is understandable to those skilled in the art that the material of the conductive shielding assembly 30 is metal or conductive plastic, or a composite in which an inner core is plastic but the inner core is covered with metal.
In one embodiment of the present disclosure, the tongue plate 100 is a printed circuit board.
Compared with the prior art, the tongue plate 100 of the present disclosure includes the conductive shielding assembly 30. The conductive shielding assembly 30 includes the first conductive shielding plate 31 in contact with the first ground terminal G1, the second conductive shielding plate 32 in contact with the second ground terminal G2, and the connecting plate 35 connecting the first conductive shielding plate 31 and the second conductive shielding plate 32. The first conductive shielding plate 31, the second conductive shielding plate 32 and the connecting plate 35 jointly form the U-shaped first conductive shielding cavity 301. The first signal terminal group DP1 is located at the first opening 3011 of the first conductive shielding cavity 301 along the third direction A3-A3. In this way, the first signal terminal group DP1 of the present disclosure can be isolated from other signals under the function of the first conductive shielding cavity 301. As a result, signal crosstalk is reduced, and the quality of signal transmission is improved.
Besides, the conductive shielding assembly 30 includes the third conductive shielding plate 33 in contact with the third ground terminal G3 and the fourth conductive shielding plate 34 is in contact with the fourth ground terminal G4. The connecting plate 35 connects the third conductive shielding plate 33 and the fourth conductive shielding plate 34. The third conductive shielding plate 33, the fourth conductive shielding plate 34 and the connecting plate 35 jointly form the U-shaped second conductive shielding cavity 302. The second signal terminal group DP2 is located at the second opening 3021 of the second conductive shielding cavity 302 along the third direction A3-A3. In this way, the second signal terminal group DP2 of the present disclosure can be isolated from other signals under the action of the second conductive shielding cavity 302. As a result, the signal crosstalk is further reduced, and the quality of signal transmission is further improved.
The above embodiments are only used to illustrate the present disclosure and not to limit the technical solutions described in the present disclosure. The understanding of this specification should be based on those skilled in the art. Descriptions of directions, although they have been described in detail in the above-mentioned embodiments of the present disclosure, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the application, and all technical solutions and improvements that do not depart from the spirit and scope of the application should be covered by the claims of the application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311157249.9 | Sep 2023 | CN | national |
