CN111952792A - Connector and server - Google Patents

Connector and server Download PDF

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Publication number
CN111952792A
CN111952792A CN202010849704.1A CN202010849704A CN111952792A CN 111952792 A CN111952792 A CN 111952792A CN 202010849704 A CN202010849704 A CN 202010849704A CN 111952792 A CN111952792 A CN 111952792A
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CN
China
Prior art keywords
connector
gnd
server
port
connector port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010849704.1A
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Chinese (zh)
Inventor
田立良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Inspur Intelligent Technology Co Ltd
Original Assignee
Suzhou Inspur Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Inspur Intelligent Technology Co Ltd filed Critical Suzhou Inspur Intelligent Technology Co Ltd
Priority to CN202010849704.1A priority Critical patent/CN111952792A/en
Publication of CN111952792A publication Critical patent/CN111952792A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/6485—Electrostatic discharge protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/06—Connectors or connections adapted for particular applications for computer periphery

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention provides a connector and a server, wherein a gap with a first distance is arranged between GND of a connector port and GND of a server mainboard; a target pin is arranged in a pin corresponding to GND of the connector port, and the attribute parameter of the target pin is no attribute; a shielding structure with a corresponding size is arranged outside the connector; therefore, the interference signal can be effectively prevented from being transmitted to the connector port along the GND plane, and can be transmitted along the server case shell instead of being transmitted to the mainboard chip end along the mainboard, so that the electrostatic discharge performance of the connector port can be improved; meanwhile, the attribute parameter of the target pin is set to be without attribute, so that the integrity of high-speed signal transmission of the connector port can be ensured; the shielding structure is arranged outside the connector, so that the connector and the server outer box can be in low-impedance lap joint, the electrostatic discharge performance is further improved, and the normal operation of the server is ensured.

Description

Connector and server
Technical Field
The invention belongs to the technical field of server design, and particularly relates to a connector and a server.
Background
In the design process of the server, the important design for the port is an antistatic design, and static charges are generated after different substances rub against each other to form a large voltage and a strong electric field, so that the server is greatly damaged, and the normal operation of the server is influenced.
The common method in the prior art is to avoid using the network port connector and the USB network port connector together to reduce the design index of electrostatic discharge; the electrostatic discharge performance standard is air discharge +/-8 KV and contact discharge +/-4 KV. Therefore, the product can be ensured to pass through the electromagnetic compatibility test certification smoothly under the machine room environment.
But although the server product is satisfactory for emc testing certification in a machine room environment. However, in a normal environment after the server is moved out of the machine room, the server malfunctions due to static electricity, so that the server cannot normally operate.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a connector and a server, which are used for solving the technical problem that the server cannot normally operate due to misoperation caused by static electricity in a normal environment of a server product in the prior art.
The invention provides a connector.A gap with a first distance is arranged between GND of a connector port and GND of a server mainboard;
a target pin is arranged in a pin corresponding to GND of the connector port, and the attribute parameter of the target pin is no attribute;
the exterior of the connector is provided with a shielding structure of corresponding dimensions.
Optionally, a bridging device is disposed between the GND of the connector port and the GND of the server motherboard, and the bridging device is configured to suppress noise.
Optionally, for the connector port, a second distance between the target pin and the adjacent GND pin is 5-10 mil.
Optionally, the bonding device includes: 0 ohm resistor, capacitor or magnetic bead.
Optionally, the first distance is 20-30 mil.
Optionally, a bent region is disposed on the shielding structure.
Optionally, the bending region is correspondingly attached to a copper exposure region on the board card of the connector to form an attachment region; the bonding region is in a conductive state.
Optionally, the connector includes: a network port connector or an optical port connector.
The invention also provides a server comprising a connector as defined in any one of the above.
The invention provides a connector and a server, wherein a gap with a first distance is arranged between a GND (ground) of a connector port and a GND of a server mainboard; a target pin is arranged in a pin corresponding to GND of the connector port, and the attribute parameter of the target pin is no attribute; a shielding structure with a corresponding size is arranged outside the connector; therefore, the server mainboard GND and the GND of the connector port are divided, so that Pulse Width Modulation (PWM) signals, interference signals generated by a crystal oscillator and a clock oscillator can be effectively prevented from being transmitted to the connector port along a GND plane, the interference signals can be transmitted along the server case shell instead of being transmitted to the mainboard chip end along the mainboard, and the electrostatic discharge performance of the connector port can be improved; meanwhile, the attribute parameter of the target pin is set to be without attribute, so that the integrity of high-speed signal transmission of the connector port can be ensured; the shielding structure is arranged outside the connector, so that the connector and the server outer box can be in low-impedance lap joint, poor contact between the connector and the server outer box is avoided, the problem of electromagnetic compatibility is avoided, the electrostatic discharge performance is further improved, server misoperation is avoided, and normal operation of the server is ensured.
Drawings
FIG. 1 is a schematic diagram of a connector port provided in an integrated form according to an embodiment of the present invention;
fig. 2 is a schematic overall structure diagram of a connector port provided in a server according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating the formation of a return current according to an embodiment of the present invention.
Detailed Description
The server comprises a server body, a server shell, a static electricity generating device, a power supply and a power supply. The invention provides a connector and a server; a gap with a first distance is arranged between the GND of the connector port and the GND of the server mainboard; a target pin is arranged in a pin corresponding to GND of the connector port, and the attribute parameter of the target pin is no attribute; the exterior of the connector is provided with a shielding structure of corresponding dimensions.
The technical solution of the present invention is further described in detail by the accompanying drawings and the specific embodiments.
Example one
The present embodiment provides a connector, including: a connector port; the connector port may be a stand-alone port or an integrated port. As shown in fig. 1, the connector port is an integrated port of a USB interface and an RJ45 interface. The connector port is generally provided with GND pins on the periphery, and the GND pins are indicated by reference numeral 11.
Specifically, as shown in fig. 2, when there is a PWM signal or a crystal oscillator or a clock oscillator 22 around the connector port 21, in order to prevent the interference signal generated by the PWM signal or the crystal oscillator or the clock oscillator from being transmitted to the connector port along the GND plane and affecting the electrostatic discharge performance, the server motherboard GND and the GND of the connector port need to be divided.
Specifically, when designing the connector, the gap between the server main board GND and the GND of the connector port 21 is adjusted to a first distance based on the division instruction; namely, a gap with a first distance is arranged between the GND of the connector port 21 and the server motherboard GND; the first distance ranges from greater than 20 mils; the preferable range is 20-30 mil.
Further, when the static electricity test rating is relatively high, for example: when the contact discharge is +/-8 KV and the air discharge is +/-15 KV, after the gap between the GND of the server mainboard and the GND of the connector port is adjusted to be a first distance, the transmission path of an interference signal can be cut off, the interference signal is prevented from being transmitted to the connector port 21 along the GND plane, the interference signal is transmitted along the server case shell 23, the misoperation of the server is avoided,
here, after the gap between the GND of the connector port 21 and the main board GND is adjusted to the first distance, it is not necessary to completely isolate them for more advantageous low-noise filtering, and as an alternative embodiment, after the gap between the server main board GND and the GND of the connector port is adjusted to the first distance, a bridging device is provided between the main board GND and the GND of the connector port, and the bridging device is used to suppress noise. Wherein the clutch means may be as indicated at 24 in figure 1.
Here, the bonding device may include: 0 ohm resistor, capacitor or magnetic beads, etc. The equivalent circuit of the magnetic bead is equivalent to a band-stop limiter, has a remarkable inhibiting effect on the noise of a certain frequency point, and needs to estimate the frequency of the noise point in advance when in use so as to select the magnetic bead with a proper type; thus, magnetic beads are not suitable for use where the frequency is not determined or predictable. The capacitor can isolate the direct current from the direct current, but is easy to cause floating ground during use, and is not the optimal choice. The 0 ohm resistor is equivalent to a narrow current path, and can effectively limit the loop current, so that the noise is suppressed. The strap device in this example is a 0 ohm resistor.
It should be noted that, if the connector port is a non-integrated port (independent port), the integrity of the high-speed signal of the connector port 21 will not be affected after the first distance is set between the GND of the connector port and the GND of the server motherboard.
However, if the connector port 21 is an integrated port, after a gap of a first distance is formed between the server motherboard GND and the GND of the connector port 21, the high-speed signal does not have a complete reference plane, so that the integrity of the high-speed signal is affected, mainly because:
specifically, for a high-speed signal of a port, the high-speed signal generates a return current during transmission, and referring to fig. 3, in a circuit board design process, after a time domain signal flows from an excitation terminal to a load terminal through a signal line, a complete reference plane (a GND plane or a VCC plane) is required to be a path through which the return current flows (the reference plane in fig. 3 is the GND plane). If the path is discontinuous or interrupted after the division, which may affect the return current, the return current may find a path to return by itself, and this path may affect the integrity of the signal and also affect the radiation characteristics of the electromagnetic compatibility. In fig. 3, the interference signal generated by the PWM signal 31 flows into the port 32 through the GND plane.
In order not to affect the integrity of the port high-speed signal, it is necessary to determine a target pin among pins corresponding to GND of the connector port, and set an attribute parameter of the target pin to no attribute based on an attribute parameter setting instruction. It is noted that, when determining the target pin, the criterion is to ensure that the GND reference plane remains intact, which is equivalent to a separate intact reference plane for the high-speed signal, so that the integrity of the high-speed signal can be ensured.
For example, with continued reference to fig. 2, if the connector is a network connector and there are GND pins all around the connector port 21, the left GND pin or the right GND pin in fig. 2 may be set as the target pin 25. In order to further improve the electrostatic discharge performance, an Electromagnetic Interference (EMI) protection device 26 is also included in fig. 2, and the EMI protection device 26 is used for resisting the EMI.
If the connector 21 is an optical connector, the upper GND pin of the connector port 21 may be set as a target pin.
After the target pin is determined, as an optional embodiment, for the port of the connector, the second distance between the target pin and the adjacent GND pin is 5-10 mil. This ensures that as many high-speed signals as possible pass through the connector port 21 without causing difficulty in the manufacturing process.
In order to further enhance the electrostatic discharge performance of the connector port 21, the exterior of the connector is provided with a correspondingly sized shielding structure; the shielding structure may comprise a shield can.
Here, the connector is typically lapped with the server chassis through a spring point or a gasket; however, in the actual design process, the spring points and the gaskets are in poor lap joint with the chassis due to processing and assembling process problems, so that the electromagnetic compatibility problem is caused. Therefore, in the embodiment, the shielding cover is arranged outside the connector, the elastic points are arranged at corresponding positions on the shielding cover, the elastic points on the shielding cover are correspondingly lapped with the elastic points on the connector, and the shielding cover can be lapped with the chassis in a low impedance manner through the conductive foam, so that the connector port 21 and the server chassis can be lapped in a low impedance manner, and the electrostatic discharge performance of the connector is further improved.
The shielding cover is also provided with a bending area, and the bending area is correspondingly attached to a copper exposure area on a board card of the connector to form an attachment area; the bonding region is in a conductive state.
Wherein, do not spray green oil to the laminating region for the laminating region is conductive state, further ensures the low impedance overlap joint of server mainboard and quick-witted case, and static can be transmitted along server machine case shell 23, avoids on static transmits the chip of server mainboard, leads to the server to produce the malfunction.
Based on the same inventive concept, the invention also provides a server, which is detailed in embodiment two.
Example two
This embodiment also provides a server, and the server includes: the connector port 21, the PWM signal, the crystal oscillator or the clock oscillator 22, the server casing 23, the bridging device 24, the target pin 25, and the electromagnetic interference protection device 26 mentioned in the first embodiment; the structure of the connector in this embodiment is completely the same as that of the connector in the first embodiment, and thus, the description thereof is omitted.
The connector and the server provided by the invention have the beneficial effects that at least:
the invention provides a connector and a server, wherein a gap with a first distance is arranged between GND of a connector port and GND of a server mainboard; a target pin is arranged in a pin corresponding to GND of the connector port, and the attribute parameter of the target pin is no attribute; a shielding structure with a corresponding size is arranged outside the connector; therefore, the server mainboard GND and the GND of the connector port are divided, so that the interference signals generated by the PWM signals, the crystal oscillator and the clock oscillator can be effectively prevented from being transmitted to the connector port along the GND plane, the interference signals can be transmitted along the server case shell instead of being transmitted to the mainboard chip end along the mainboard, and the electrostatic discharge performance of the connector port can be improved; meanwhile, the attribute parameter of the target pin is set to be without attribute, so that the integrity of high-speed signal transmission of the connector port can be ensured; the shielding structure is arranged outside the connector, so that the connector and the server outer box can be ensured to be in low-impedance lap joint, poor contact between the connector and the server outer box is avoided, the problem of electromagnetic compatibility is avoided, the electrostatic discharge performance is further improved, server misoperation is avoided, and normal operation of the server under a conventional environment is ensured.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.

Claims (9)

1. A connector, characterized in that,
a gap with a first distance is arranged between the GND of the connector port and the GND of the server mainboard;
a target pin is arranged in a pin corresponding to GND of the connector port, and the attribute parameter of the target pin is no attribute;
the exterior of the connector is provided with a shielding structure of corresponding dimensions.
2. The connector according to claim 1, wherein a bridging device is provided between the GND of the connector port and the server main board GND, the bridging device being for suppressing noise.
3. The connector of claim 2, wherein for the connector port, the second distance between the target pin and the adjacent GND pin is 5-10 mils.
4. The connector of claim 2, wherein the clutch member comprises: 0 ohm resistor, capacitor or magnetic bead.
5. The connector of claim 1, wherein the first distance is 20-30 mils.
6. The connector of claim 1, wherein the shield structure is provided with a bend region.
7. The connector of claim 6, wherein the bending region is correspondingly attached to a copper exposed region on a board card of the connector to form an attachment region; the bonding region is in a conductive state.
8. The connector of claim 1, wherein the connector comprises: a network port connector or an optical port connector.
9. A server, characterized in that the server comprises a connector according to any of claims 1 to 8.
CN202010849704.1A 2020-08-21 2020-08-21 Connector and server Pending CN111952792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010849704.1A CN111952792A (en) 2020-08-21 2020-08-21 Connector and server

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010849704.1A CN111952792A (en) 2020-08-21 2020-08-21 Connector and server

Publications (1)

Publication Number Publication Date
CN111952792A true CN111952792A (en) 2020-11-17

Family

ID=73359083

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010849704.1A Pending CN111952792A (en) 2020-08-21 2020-08-21 Connector and server

Country Status (1)

Country Link
CN (1) CN111952792A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514708A (en) * 2014-10-10 2016-04-20 第一精工株式会社 Electrical connector and electrical connector device
CN108846221A (en) * 2018-06-26 2018-11-20 郑州云海信息技术有限公司 A kind of server, server master board and its design method, device
CN209981513U (en) * 2019-07-18 2020-01-21 深圳市英威腾电动汽车驱动技术有限公司 Connector with a locking member

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514708A (en) * 2014-10-10 2016-04-20 第一精工株式会社 Electrical connector and electrical connector device
CN108846221A (en) * 2018-06-26 2018-11-20 郑州云海信息技术有限公司 A kind of server, server master board and its design method, device
CN209981513U (en) * 2019-07-18 2020-01-21 深圳市英威腾电动汽车驱动技术有限公司 Connector with a locking member

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Application publication date: 20201117