CN218161095U - Circuit board and cable connector - Google Patents
Circuit board and cable connector Download PDFInfo
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- CN218161095U CN218161095U CN202221609636.2U CN202221609636U CN218161095U CN 218161095 U CN218161095 U CN 218161095U CN 202221609636 U CN202221609636 U CN 202221609636U CN 218161095 U CN218161095 U CN 218161095U
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Abstract
The utility model discloses a circuit board and cable connector, cable connector includes: insulator and circuit board, the circuit board is equipped with and exposes the external butt joint portion of insulator and sets firmly the fixed part in insulator, the circuit board includes relative first layer and second floor from top to bottom, and be located the intermediate level between first layer and the second floor, the first layer is equipped with the front side pad, rear side pad and be located the first shielding part between front side pad and the rear side pad, the front side pad is located butt joint portion, the rear side pad is located the fixed part, the front side pad includes front side signal pad and first front side grounding pad, the rear side pad includes rear side signal pad and first rear side grounding pad, first front side grounding pad and first rear side grounding pad are close to the one end of first shielding part respectively and all link to each other with first shielding part, the intermediate level is equipped with the signal conducting wire of connecting front side signal pad and rear side signal pad, first shielding part is used for shielding signal conducting wire in the upper and lower direction.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to a circuit board and a cable connector, and more particularly to a cable connector for electrically connecting cables.
[ background of the invention ]
The server is often used under the air circumstance, along with service performance promotion and faster and more energy-saving heat dissipation requirements, the server begins to be soaked in non-conductive liquid such as fluorine oil through the complete machine for rapid heat dissipation at present.
In the above structure, there are the following problems:
1. since the exposed bonding pads of the circuit board in the connector are affected by the cooling liquid in the liquid cooling environment, the high-frequency impedance of the signal conducting circuit of the circuit board is reduced, so that the insertion loss is increased, and the signal transmission integrity of the circuit board and the whole server is further affected.
2. The ground conductive circuits are located on the left side and the right side of the signal conductive circuit, and shield signals of the signal conductive circuit only on the left side and the right side, so that the shielding performance is weaker compared with the signal shielding of the signal conductive circuit formed by forming a whole piece in the vertical direction.
Therefore, there is a need for a new circuit board and cable connector to overcome the above problems.
[ Utility model ] content
To the problem that the background art faces, the utility model discloses an author aim at provides relative first layer and second floor from top to bottom, and be located the first layer with intermediate level between the second floor, the first layer is equipped with front side pad, rear side pad and is located the front side pad with first shielding between the rear side pad, the intermediate level is equipped with the connection the front side signal pad of front side pad with signal conducting wire between the rear side signal pad of rear side pad, first shielding is used for shielding in the upper and lower direction the cable connector of signal conducting wire.
In order to achieve the above object, the utility model adopts the following technical means:
a cable connector, comprising: an insulating body; a circuit board, the circuit board be equipped with expose the external butt joint portion of this insulator with set firmly in a fixed part in the insulator, the circuit board includes relative first layer and a second floor from top to bottom, and is located first layer with an at least intermediate level between the second floor, first layer is equipped with a plurality of front side pads, a plurality of rear side pad and is located the front side pad with a first shielding member between the rear side pad, it is a plurality of the front side pad is located in the butt joint portion, it is a plurality of the rear side pad is located on the fixed part, the front side pad includes a pair of front side signal pad and is located a pair of two first front side ground pads of front side signal pad both sides, the rear side pad includes a pair of rear side signal pad and is located a pair of two first rear side ground pads of rear side signal pad both sides, it is a plurality of first front side ground pad be close to the one end of first shielding member with first shielding pad links to each other, it is a plurality of first rear side ground pads is close to first rear side signal pad with the one end of shielding member is equipped with a plurality of conducting wires signal connection piece under the front side signal pad.
Further, the first layer still including being located the rear side pad is kept away from a second shield of first shield one end, the second shield is with a plurality of first rear side ground pad is kept away from one end of first shield links to each other, a plurality of cables, the cable weld in on the rear side pad, the second shield is used for shielding in the upper and lower direction the part of cable.
Further, first layer still includes a plurality of ground connection conducting wires and a plurality of power conducting wires, the front side pad still include a plurality of front side power pads and with a plurality of second front side ground pads that the front side power pad is adjacent to be set up, the rear side pad still include a plurality of rear side power pads and with a plurality of second rear side ground pads that the rear side power pad is adjacent to be set up, the front side power pad with rear side power pad one-to-one and pass through the power conducting wire links to each other, the second front side ground pad with the second rear side ground pad one-to-one and pass through the ground connection conducting wire links to each other, the second shielding part is with a plurality of the second rear side ground pad is kept away from the one end of ground connection conducting wire links to each other.
Furthermore, the second shielding piece is close to one end of the first rear side grounding bonding pad and is provided with a first extension part towards the front side in an extending mode, the first extension part is located on one side of the first rear side grounding bonding pad and is connected with the first shielding piece, one end of the second shielding piece, which is close to the rear side power supply bonding pad, is provided with a second extension part towards the front side in an extending mode, and the second extension part is located on one side of the rear side power supply bonding pad.
Furthermore, each power conducting circuit is provided with a first bending part, each grounding conducting circuit is provided with a second bending part, the bending angle of the first bending part is the same as that of the second bending part, and the lengths of the first bending part and the second bending part are gradually reduced along with the approach of the first shielding part.
Furthermore, each power conductive circuit has a first bending portion, each ground conductive circuit has a second bending portion, the length of the first bending portion close to the first shielding member is smaller than the length of the first bending portion far away from the first shielding member, the length of the second bending portion close to the first shielding member is smaller than the length of the second bending portion far away from the first shielding member, the distance between one end of each of two adjacent power conductive circuits connected to the front power pad is equal to the distance between one end of each of the two adjacent power conductive circuits connected to the front power pad and one end of each of the two adjacent ground conductive circuits connected to the second front ground pad, the distance between one end of each of two adjacent power conductive circuits connected to the rear power pad is equal to the distance between one end of each of the two adjacent power conductive circuits connected to the rear power pad and one end of each of the two adjacent ground conductive circuits connected to the second rear ground pad, a first distance is larger than a second distance between one end of each of two adjacent power conductive circuits connected to the front power pad, and the first distance between one end of each of the two adjacent power conductive circuits connected to the rear power pad.
A circuit board, comprising: a relative first layer and a second floor from top to bottom, and be located first layer with an at least intermediate level between the second layer, first layer is equipped with a plurality of front side pads, a plurality of rear side pad and is located the front side pad with a first shield between the rear side pad, the front side pad includes a pair of front side signal pad and is located a pair of two first front side ground pads of front side signal pad both sides, the rear side pad includes a pair of rear side signal pad and is located a pair of two first rear side ground pads of rear side signal pad both sides, and is a plurality of first front side ground pad is close to the one end of first shield with first shield links to each other, and is a plurality of first rear side ground pad is close to the one end of first shield with first shield links to each other, the intermediate level is equipped with and connects front side signal pad with a plurality of signal conducting wires of rear side signal conducting wires, first shield is used for shielding in the upper and lower direction the signal conducting wires.
Further, the first layer further comprises a second shielding member located at one end of the back side bonding pad far away from the first shielding member, and the second shielding member is connected with one ends of the plurality of first back side grounding bonding pads far away from the first shielding member.
Further, first layer still includes a plurality of ground connection conducting wires and a plurality of power conducting wires, the front side pad still include a plurality of front side power pads and with a plurality of second front side ground pads that the front side power pad is adjacent to be set up, the rear side pad still include a plurality of rear side power pads and with a plurality of second rear side ground pads that the rear side power pad is adjacent to be set up, the front side power pad with rear side power pad one-to-one and pass through the power conducting wire links to each other, the second front side ground pad with the second rear side ground pad one-to-one and pass through the ground connection conducting wire links to each other, the second shielding part is with a plurality of the second rear side ground pad is kept away from the one end of ground connection conducting wire links to each other.
Furthermore, each power conductive circuit has a first bending portion, each ground conductive circuit has a second bending portion, the bending angle of the first bending portion is the same as the bending angle of the second bending portion, and the lengths of the plurality of first bending portions and the plurality of second bending portions decrease progressively as the first shielding member is approached.
Compared with the prior art, the utility model discloses following beneficial effect has:
the signal conducting circuit in the circuit board is arranged in the middle layer, cooling liquid can be isolated from the signal conducting circuit, the influence of the cooling liquid on the high-frequency impedance of the circuit board is limited, and the signal transmission integrity of the circuit board and the whole server is stabilized.
First shielding part is the integral type, first shielding part is connected the preceding side ground pad with trailing flank ground pad just is used for shielding in the up-down direction signal conducting wire, and the shielding effect is better.
[ description of the drawings ]
Fig. 1 is an exploded perspective view of a cable connector according to the present invention;
FIG. 2 is a perspective view of the circuit board of the present invention;
fig. 3 is a plan view of the circuit board of the present invention;
FIG. 4 isbase:Sub>A cross-sectional view taken along A-A of FIG. 3;
fig. 5 is a perspective view of another view angle of the circuit board of the present invention;
detailed description of the embodiments reference is made to the accompanying drawings in which:
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Insulating body 1 | |
| Butt |
Fixed |
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Front |
Front |
| First distance L1 | First front- |
Second front- |
| Rear |
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| Second interval L2 | First rear- |
Second |
| Power supply |
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Ground |
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| Signal |
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Cable 3 |
[ detailed description ] embodiments
For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.
As shown in fig. 1 to 5, the cable connector 100 of the present invention is used for electrically connecting a mating component, preferably a mating connector, to a cable 3. The plugging direction of the cable connector 100 into the mating component is defined as Y-axis, the width direction of the cable connector 100 is X-axis, and the height direction of the cable connector 100 is Z-axis.
As shown in fig. 1, the cable connector 100 includes an insulating body 1 and a circuit board 2, wherein the circuit board 2 is provided with a mating portion 21 exposed outside the insulating body 1 and a fixing portion 22 fixed inside the insulating body 1.
As shown in fig. 1 to 5, the circuit board 2 includes a first layer 23 and a second layer 25 opposite to each other, and two intermediate layers 24 located between the first layer 23 and the second layer 25, and in other embodiments, there may be one intermediate layer 24.
As shown in fig. 1 to 3, the first layer 23 is provided with a plurality of front pads 231, a plurality of back pads 232, a first shielding member 235 located between the front pads 231 and the back pads 232, and a second shielding member 236 located at an end of the back pads 232 far from the first shielding member 235. The first layer 23 further includes a plurality of ground conductive traces 234 and a plurality of power conductive traces 233, each of the power conductive traces 233 has a first bending portion 2331, each of the ground conductive traces 234 has a second bending portion 2341, an angle α of bending of the first bending portion 2331 is the same as an angle α of bending of the second bending portion 2341, a length L3 of the first bending portion 2331 close to the first shielding member 235 is smaller than a length L4 of the first bending portion 2331 far away from the first shielding member 235, a length of the second bending portion 2341 close to the first shielding member 235 is smaller than a length of the second bending portion 2341 far away from the first shielding member 235, and the lengths of the plurality of first bending portions 2331 and the plurality of second bending portions 2341 decrease as the first shielding member 235 is close to the first shielding member 235.
As shown in fig. 2 and 3, the front pads 231 are located on the butting portion 21, the rear pads 232 are located on the fixing portion 22, the front pads 231 include a pair of front signal pads 2311 and two first front ground pads 2313 located on two sides of the pair of front signal pads 2311, the rear pads 232 include a pair of rear signal pads 2321 and two first rear ground pads 2323 located on two sides of the pair of rear signal pads 2321, one ends of the first front ground pads 2313 close to the first shielding member 235 are connected to the first shielding member 235, one ends of the first rear ground pads 2323 close to the first shielding member 235 are connected to the first shielding member 235, the second shielding member 236 is connected to one ends of the first rear ground pads 2323 far from the first shielding member 235, one end of the second shielding member pad 236 close to the first rear ground pad 2323 extends forward, and the first rear ground extension 2361 is located on one side of the first shielding member 2361 and connected to the first shielding member extension 2361.
As shown in fig. 2 to 3, the front-side bonding pad 231 further includes a plurality of front-side power bonding pads 2312 and a plurality of second front-side ground bonding pads 2314 disposed adjacent to the front-side power bonding pads 2312, the back-side bonding pad 232 further includes a plurality of back-side power bonding pads 2322 and a plurality of second back-side ground bonding pads 2324 disposed adjacent to the back-side power bonding pads 2322, the front-side power bonding pads 2312 and the back-side power bonding pads 2322 correspond to each other one by one and are connected to each other by the power conductive traces 233, the second front-side ground bonding pads 2314 and the second back-side ground bonding pads 2324 correspond to each other one by one and are connected to each other by the ground conductive traces 234, the distance between two adjacent power conductive traces 233 respectively connecting one end of the front-side power bonding pads 2312 and one end of the ground conductive trace 234 connecting one end of the front-side power bonding pads 2314 is equal to the distance between two adjacent power bonding pads 233 connecting one end of the back-side power bonding pads 2322, the distance between two adjacent power bonding pads 233 is equal to the first power bonding pads 2322, and the first power bonding pad distance between the adjacent power bonding pads 2312 and the first power bonding pad 233L, the first power bonding pad 233 has a first power bonding pad spacing L, and the first power bonding pad spacing between the first power bonding pad 2322 and the first power bonding pad 233L and the first power bonding pad 233. The second shielding element 236 is connected to an end of the second rear-side ground pad 2324 away from the ground conductive trace 234, an end of the second shielding element 236 close to the rear-side power pad 2322 extends to the front side to form a second extension portion 2362, and the second extension portion 2362 is located on one side of the rear-side power pad 2322.
As shown in fig. 5, the second layer 25 is also provided with a plurality of front pads 231, a plurality of back pads 232, a first shield 235 between the front pads 231 and the back pads 232, and a second shield 236 at an end of the back pads 232 remote from the first shield 235. The second layer 25 also includes a plurality of ground conductive traces 234 and a plurality of power conductive traces 233.
As shown in fig. 3 and 5, the intermediate layer 24 is provided with a plurality of signal conductive traces 241 connecting the front-side signal pads 2311 and the back-side signal pads 2321, and the first shielding member 235 is used for shielding the signal conductive traces 241 in the up-down direction.
As shown in fig. 1, a plurality of cables 3, the cables 3 being soldered to the rear-side soldering lands 232, and the second shielding member 236 being provided to shield portions of the cables 3 in the up-down direction.
To sum up, the utility model discloses electric connector has following beneficial effect:
(1) Since the existing server is immersed in a non-conductive liquid such as fluorine oil for rapid heat dissipation through the whole machine, the signal conductive circuit 241 in the circuit board 2 is installed in the middle layer 24, so that cooling liquid can be isolated from the signal conductive circuit 241, the influence of the cooling liquid on the high-frequency impedance of the circuit board 2 is limited, and the signal transmission integrity of the circuit board 2 and the whole server is stabilized.
(2) The first shielding element 235 is a whole piece, and the first shielding element 235 is connected to the first front-side ground pad 2313 and the first back-side ground pad 2323 and is used for shielding the signal conductive trace 241 in the vertical direction, so that the shielding effect is better.
(3) The ends of the plurality of first back-side grounding pads 2323 far away from the first shield 235 are connected in series by the second shield 236, so that the first shield 235, the second shield 236, the plurality of first front-side grounding pads 2313 and the plurality of first back-side grounding pads 2323 form an integral grounding structure, and the potentials are equal, so that the shielding effect is better. The second shielding member 236 shields the cable 3 in the up-down direction, so that the shielding effect is better.
(4) The second shielding member 236 connects the ends of the plurality of second back-side ground pads 2324 far away from the ground conductive trace 234 in series, so that the first shielding member 235, the second shielding member 236, the plurality of first front-side ground pads 2313, the plurality of first back-side ground pads 2323, the plurality of second front-side ground pads 2314, the plurality of second back-side ground pads 2324 and the plurality of ground conductive traces 234 form an integral ground structure, and the electric potentials are equal, so that the shielding effect is better.
(5) The second pitch L2 is greater than the first pitch L1, which is beneficial to prevent each of the backside power pads 2322 from interfering with each other when a power bare wire is soldered separately.
(6) The bending angle of the first bending portion 2331 is the same as that of the second bending portion 2341, and the lengths of the plurality of first bending portions 2331 and the plurality of second bending portions 2341 decrease gradually as the first shielding member 235 is approached, so that when the distance between two adjacent front power pads 2312 is equal to the distance between two adjacent front power pads 2312 and the second front ground pad 2314, the distance between two adjacent rear power pads 2322 is equal to the distance between two adjacent rear power pads 2322 and the second rear ground pad 2324.
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. A cable connector, comprising:
an insulating body;
a circuit board, the circuit board be equipped with expose the external butt joint portion of this insulator with set firmly in a fixed part in the insulator, the circuit board includes relative first layer and a second floor from top to bottom, and is located first layer with an at least intermediate level between the second floor, first layer is equipped with a plurality of front side pads, a plurality of rear side pad and is located the front side pad with a first shielding member between the rear side pad, it is a plurality of the front side pad is located in the butt joint portion, it is a plurality of the rear side pad is located on the fixed part, the front side pad includes a pair of front side signal pad and is located a pair of two first front side ground pads of front side signal pad both sides, the rear side pad includes a pair of rear side signal pad and is located a pair of two first rear side ground pads of rear side signal pad both sides, it is a plurality of first front side ground pad be close to the one end of first shielding member with first shielding pad links to each other, it is a plurality of first rear side ground pads is close to first rear side signal pad with the one end of shielding member is equipped with a plurality of conducting wires signal connection piece under the front side signal pad.
2. The cable connector of claim 1, wherein: the first layer further comprises a second shielding piece located at one end of the first shielding piece and far away from the rear side welding disc, the second shielding piece is connected with one end of the first rear side grounding welding disc far away from the first shielding piece, a plurality of cables are welded on the rear side welding disc, and the second shielding piece is used for shielding parts of the cables in the up-down direction.
3. The cable connector of claim 2, wherein: the first layer still includes a plurality of ground connection conducting wires and a plurality of power conducting wires, the front side pad still include a plurality of front side power pads and with a plurality of second front side ground pads that the front side power pad is adjacent to be set up, the rear side pad still include a plurality of rear side power pads and with a plurality of second rear side ground pads that the rear side power pad is adjacent to be set up, the front side power pad with rear side power pad one-to-one and pass through the power conducting wires link to each other, the second front side ground pad with the second rear side ground pad one-to-one and pass through the ground connection conducting wires link to each other, the second shielding part is with a plurality of the second rear side ground pad is kept away from the one end of ground connection conducting wires links to each other.
4. The cable connector of claim 3, wherein: the second shielding piece is close to one end of the first rear side grounding bonding pad extends towards the front side to form a first extending part, the first extending part is located on one side of the first rear side grounding bonding pad and is connected with the first shielding piece, the second shielding piece is close to one end of the rear side power bonding pad extends towards the front side to form a second extending part, and the second extending part is located on one side of the rear side power bonding pad.
5. The cable connector of claim 3, wherein: each power conductive circuit is provided with a first bending part, each grounding conductive circuit is provided with a second bending part, the bending angle of the first bending part is the same as that of the second bending part, and the lengths of the plurality of first bending parts and the plurality of second bending parts are gradually reduced along with the approach of the first shielding part.
6. The cable connector of claim 3, wherein: each power supply conductive circuit is provided with a first bending part, each grounding conductive circuit is provided with a second bending part, the length of the first bending part close to the first shielding part is smaller than the length of the first bending part far away from the first shielding part, the length of the second bending part close to the first shielding part is smaller than the length of the second bending part far away from the first shielding part, the distance between one end, connected with the front side power supply pad, of each two adjacent power supply conductive circuits is equal to the distance between one end, connected with the front side power supply pad, of each adjacent power supply conductive circuit and one end, connected with the second front side grounding pad, of each grounding conductive circuit, the distance between one end, connected with the front side power supply pad, of each two adjacent power supply conductive circuits is equal to the distance between one end, connected with the rear side power supply pad, of each adjacent power supply conductive circuit and one end, connected with the second rear side grounding pad, of each two grounding conductive circuits is equal to the first distance, and the second distance between one end, connected with the rear side power supply pad, of each two adjacent power supply conductive circuits is greater than the first distance.
7. A circuit board, comprising: a relative first layer and a second floor from top to bottom, and be located the first layer with an at least intermediate level between the second layer, the first layer is equipped with a plurality of front side pads, a plurality of rear side pad and is located the front side pad with a first shield between the rear side pad, the front side pad includes a pair of front side signal pad and is located a pair of two first front side ground pads of front side signal pad both sides, the rear side pad includes a pair of rear side signal pad and is located a pair of two first rear side ground pads of rear side signal pad both sides, and is a plurality of first front side ground pad is close to the one end of first shield with first shield links to each other, and is a plurality of first rear side ground pad is close to the one end of first shield with first shield links to each other, the intermediate level is equipped with and connects front side signal pad with a plurality of signal conducting wires of rear side signal, first shield is used for shielding the signal in the upper and lower direction.
8. The circuit board of claim 7, wherein: the first layer further comprises a second shielding piece located at one end, far away from the first shielding piece, of the back side bonding pad, and the second shielding piece is connected with a plurality of ends, far away from the first shielding piece, of the first back side grounding bonding pad.
9. The circuit board of claim 8, wherein: the first layer still includes a plurality of ground conductive circuit and a plurality of power conducting circuit, the front side pad still include a plurality of front side power pads and with a plurality of second front side ground pads that the front side power pad is adjacent to be set up, the rear side pad still include a plurality of rear side power pads and with a plurality of second rear side ground pads that the rear side power pad is adjacent to be set up, the front side power pad with rear side power pad one-to-one and pass through the power conducting circuit links to each other, the second front side ground pad with the second rear side ground pad one-to-one passes through the ground conducting circuit links to each other, the second shielding part is with a plurality of the second rear side ground pad is kept away from the one end of ground conducting circuit links to each other.
10. The circuit board of claim 9, wherein: each power conductive circuit is provided with a first bending part, each grounding conductive circuit is provided with a second bending part, the bending angle of the first bending part is the same as that of the second bending part, and the lengths of the plurality of first bending parts and the plurality of second bending parts are gradually reduced along with the approach of the first shielding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221609636.2U CN218161095U (en) | 2022-06-23 | 2022-06-23 | Circuit board and cable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221609636.2U CN218161095U (en) | 2022-06-23 | 2022-06-23 | Circuit board and cable connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218161095U true CN218161095U (en) | 2022-12-27 |
Family
ID=84577757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221609636.2U Active CN218161095U (en) | 2022-06-23 | 2022-06-23 | Circuit board and cable connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218161095U (en) |
-
2022
- 2022-06-23 CN CN202221609636.2U patent/CN218161095U/en active Active
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