CN107635389B - Server case capable of reducing radiation and server - Google Patents
Server case capable of reducing radiation and server Download PDFInfo
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- CN107635389B CN107635389B CN201710818600.2A CN201710818600A CN107635389B CN 107635389 B CN107635389 B CN 107635389B CN 201710818600 A CN201710818600 A CN 201710818600A CN 107635389 B CN107635389 B CN 107635389B
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Abstract
The invention relates to a server case and a server capable of reducing radiation, which are characterized by comprising a case, a small plate and a main board; the small plate is provided with a VGA connector and a USB connector; the case comprises a metal case and a front plastic case; the front plastic shell is provided with a VGA opening used for being matched with the VGA connector on the small plate, a USB opening used for being matched with the USB connector on the small plate and a mounting hole used for being matched with the conductive fixing piece to be inserted to mount the small plate on the front plastic shell; a fixing hole is formed in the position of the front plastic casing mounting hole correspondingly mounted on the small plate; the conductive fixing piece is inserted into the mounting hole and the fixing hole to mount the small plate on the front plastic shell; conducting spraying treatment is carried out on the front plastic shell; the metal casing is fixedly connected with the front plastic casing.
Description
Technical Field
The invention belongs to the technical field of server design, and particularly relates to a server case capable of reducing radiation and a server.
Background
In the server, usually, a VGA (Video Graphics Array) and USB (Universal Serial Bus) interface device is provided, and the VGA and USB interface can connect an external display device and a USB device to expand external functions.
In the design of the server, for the sake of beauty, cost saving and customer requirement, the front-end processor shell of the server is composed of plastic parts, if the VGA and the USB inside the plastic shell are not well designed, the grounding is suspended, namely, a long antenna is connected in front, and radiation signals are directly transmitted into the space, so that strong radiation interference is caused.
The cable of server internal connection is wrapped up in with electrically conductive cloth or copper sticky tape and is carried out the electromagnetic shield, behind the shortcoming ① cable parcel shielding layer of this kind of method, the cable is whole harder, is difficult to buckle, influences the equipment to occupied the inside general usage space of server ② cable parcel shielding layer after, whole width thickens, the cable is longer, it is more difficult to thread in the server inside ③ cost is higher, under the same condition, extravagant shielding material increases the product overall cost.
Disclosure of Invention
The present invention is directed to a server chassis and a server capable of reducing radiation, so as to solve the above technical problems.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a server case capable of reducing radiation comprises a metal case and a front plastic case;
the front plastic shell is provided with a VGA opening used for being matched with a VGA connector on the small server plate, a USB opening used for being matched with a USB connector on the small server plate and a mounting hole used for being matched with a conductive fixing piece to be inserted to mount the small server plate on the front plastic shell;
conducting spraying treatment is carried out on the front plastic shell;
the metal casing is fixedly connected with the front plastic casing.
Further, the mounting holes are subjected to conductive spraying treatment, so that the common-mode signal on the small plate reaches the whole metal box body through the conductive fixing piece; avoiding the interference of common mode signals.
Furthermore, the fixed contact position of the front plastic casing and the metal casing is subjected to conductive spraying treatment, so that the parasitic capacitance between the two surfaces is reduced, and the common-mode interference signal of the front plastic casing is transmitted to the metal casing.
Furthermore, the number of the USB openings on the front plastic shell is two.
A server capable of reducing radiation comprises a case, a small plate and a main board;
the small plate is provided with a VGA connector and a USB connector;
the case comprises a metal case and a front plastic case;
the front plastic shell is provided with a VGA opening used for being matched with the VGA connector on the small plate, a USB opening used for being matched with the USB connector on the small plate and a mounting hole used for being matched with the conductive fixing piece to be inserted to mount the small plate on the front plastic shell;
a fixing hole is formed in the position of the front plastic casing mounting hole correspondingly mounted on the small plate;
the conductive fixing piece is inserted into the mounting hole and the fixing hole to mount the small plate on the front plastic shell;
the mainboard is provided with a VGA connecting terminal and a USB connecting terminal;
the VGA connector on the small plate is connected with the VGA connecting terminal on the main board through a flat cable;
the USB connector on the small plate is connected with the USB connecting terminal on the main board through the flat cable.
Conducting spraying treatment is carried out on the front plastic shell;
the metal casing is fixedly connected with the front plastic casing.
Further, the mounting holes and the fixing holes are both subjected to conductive spraying treatment, so that common-mode signals on the small plates reach the whole metal box body through the conductive fixing pieces; avoiding the interference of common mode signals.
Furthermore, the fixed contact position of the front plastic casing and the metal casing is subjected to conductive spraying treatment, so that the parasitic capacitance between the two surfaces is reduced, and the common-mode interference signal of the front plastic casing 1 is transmitted to the metal casing.
Furthermore, the number of the USB openings on the front plastic shell is two.
Furthermore, a first pin and a last pin of the mainboard VGA connecting terminal are connected with a GND line of the mainboard;
and a first pin and a last pin of the USB connecting terminal of the mainboard are connected with a GND line of the mainboard.
Furthermore, shielding layers are added on the upper surface and the lower surface of the flat cable;
the flat cable first and last lines have properties set to GND.
The shell of the VGA connector and the shell of the USB connector are both provided with a metal shielding layer, and when the front plastic shell is used for conducting spraying, the places where the VGA connector and the USB connector are contacted with the front plastic shell are required to be conducted with conducting spraying, so that a complete shielding body is formed by a machine.
The mounting hole is conductively coated, so that the shielding layer of the front plastic shell is connected with GND of the mainboard, and common-mode signals on the small plates reach the conductive plane through the conductive fixing piece and reach the upper surface of the whole metal box body through the conductive plane. This avoids interference of common mode signals.
The position where the front plastic casing is contacted with the metal casing is subjected to conductive spraying, so that the resistance of a contact surface is reduced, the parasitic capacitance between the two surfaces is reduced, and a common-mode interference signal of the front plastic casing is transmitted to the metal casing.
The upper surface and the lower surface of the flat cable are added with shielding layers, the attributes of the uppermost end line and the lowermost end line of the flat cable are changed into GND on the circuit, and the flat cable is arranged in a shielding body, so that the hardness of a product cannot be increased; the GND is added on the circuit at the bent position, so that the width of the flat cable is not increased, and the situation that the cable is difficult to pass through in a narrow space is avoided. The material cost is saved, and the purpose of shielding the flat cable is realized.
The invention has the beneficial effects that the technical scheme of the invention carries out conductive spraying on the front plastic shell and carries out conductive spraying on the places where the VGA connector and the USB connector are contacted with the front plastic shell, so that a machine forms a complete shielding body. And the mounting holes are subjected to conductive spraying, so that the interference of common-mode signals is avoided.
When the mainboard is designed, a first pin and a last pin of the VGA connector and the USB connector are connected with the Ground (GND) of the mainboard; the upper surface and the lower surface of the flat cable are added with shielding layers, the attributes of the uppermost end line and the lowermost end line of the flat cable are changed into GND on the circuit, and the flat cable is arranged in a shielding body, so that the hardness of a product cannot be increased; the GND is added on the circuit at the bent position, so that the width of the flat cable is not increased, and the situation that the cable is difficult to pass through in a narrow space is avoided. The material cost is saved, and the purpose of shielding the flat cable is realized.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic side view of a front plastic housing of a server capable of reducing radiation according to this embodiment.
Fig. 2 is a schematic front view of a front plastic housing of a server capable of reducing radiation according to this embodiment.
Fig. 3 is a schematic structural diagram of a server platelet capable of reducing radiation according to this embodiment.
Fig. 4 is a diagram illustrating the overall radiation test result of a conventional server.
Fig. 5 is a diagram of the overall radiation test result of the server provided by the invention.
The device comprises a front plastic shell, a 3-USB port, a 4-VGA port, a 5-mounting hole, a 6-fixing hole, a 7-small plate, an 8-VGA connector and a 9-USB connector, wherein the front plastic shell is arranged in the shell.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1 and fig. 2, the server chassis capable of reducing radiation provided by this embodiment includes a metal chassis and a front plastic chassis 1;
the front plastic casing 1 is provided with a VGA opening 4 used for matching with a VGA connector on a small server plate, a USB opening 3 used for matching with a USB connector on the small server plate and a mounting hole 5 used for matching with a conductive fixing piece to insert and mount the small server plate on the front plastic casing 1; the number of the USB openings 3 on the front plastic shell 1 is two.
The preposed plastic shell 1 is subjected to conductive spraying treatment;
the metal casing is fixedly connected with the front plastic casing 1.
The mounting holes 5 are subjected to conductive spraying treatment, so that common-mode signals on the small plates reach the whole metal box body through the conductive fixing pieces; avoiding the interference of common mode signals.
The fixed contact position of the preposed plastic casing 1 and the metal casing is subjected to conductive spraying treatment, so that the parasitic capacitance between the two surfaces is reduced, and the common-mode interference signal of the preposed plastic casing is transmitted to the metal casing.
As shown in fig. 3, this embodiment further provides a server capable of reducing radiation, which includes a chassis, a small board 7 and a motherboard;
the small plate 7 is provided with a VGA connector 8 and a USB connector 9;
the case comprises a metal case and a front plastic case 1;
the front plastic shell 1 is provided with a VGA opening 4 for matching with a VGA connector 8 on the small plate 7, a USB opening 3 for matching with a USB connector 9 on the small plate 7 and a mounting hole 5 for matching with a conductive fixing piece to insert and mount the small plate 7 on the front plastic shell 1;
a fixing hole 6 is arranged at the position of the mounting hole 5 of the front plastic case 1 correspondingly mounted on the small plate 7;
the conductive fixing piece is inserted into the mounting hole 5 and the fixing hole 6 to mount the small plate 7 on the front plastic case 1;
the mainboard is provided with a VGA connecting terminal and a USB connecting terminal;
the VGA connector on the small plate is connected with the VGA connecting terminal on the main board through a flat cable;
the USB connector on the small plate is connected with the USB connecting terminal on the main board through the flat cable.
The preposed plastic shell 1 is subjected to conductive spraying treatment;
the metal casing is fixedly connected with the front plastic casing 1.
The mounting holes 5 and the fixing holes 6 are both subjected to conductive spraying treatment, so that common-mode signals on the small plates 7 reach the whole metal box body through the conductive fixing pieces; avoiding the interference of common mode signals.
The fixed contact position of the front plastic casing 1 and the metal casing is subjected to conductive spraying treatment, so that the parasitic capacitance between the two surfaces is reduced, and the common-mode interference signal of the front plastic casing 1 is transmitted to the metal casing.
The number of the USB openings 3 on the front plastic shell 1 is two.
A first pin and a last pin of the VGA connecting terminal of the mainboard are connected with a GND line of the mainboard;
and a first pin and a last pin of the USB connecting terminal of the mainboard are connected with a GND line of the mainboard.
Shielding layers are added on the upper surface and the lower surface of the flat cable;
the flat cable first and last lines have properties set to GND.
The overall radiation test result of the traditional server is shown in fig. 4, and the overall radiation emission level of the server exceeds A level by 10 db; according to the technical scheme, after the flat cable shielding treatment and the correct conductive spraying of the front plastic shell are adopted, the overall radiation test result of the server is shown in fig. 5, the overall radiation emission level of the server can meet the B-level, the overall radiation emission level of the server in the industry is the A-level, and the radiation emission of the whole server is equivalent to that of the interior of the industry reduced by 10 times and far higher than the level in the industry.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A server capable of reducing radiation is characterized by comprising a server case capable of reducing radiation, a small plate and a main board;
the case comprises a metal case and a front plastic case;
the front plastic shell is provided with a VGA opening used for being matched with a VGA connector on the small server plate, a USB opening used for being matched with a USB connector on the small server plate and a mounting hole used for being matched with a conductive fixing piece to be inserted to mount the small server plate on the front plastic shell;
conducting spraying treatment is carried out on the front plastic shell;
the metal shell is fixedly connected with the front plastic shell;
the small plate is provided with a VGA connector and a USB connector;
the small plate is provided with a fixing hole corresponding to the mounting hole of the front plastic casing;
the conductive fixing piece is inserted into the mounting hole and the fixing hole to mount the small plate on the front plastic shell;
the mainboard is provided with a VGA connecting terminal and a USB connecting terminal;
the VGA connector on the small plate is connected with the VGA connecting terminal on the main board through a flat cable;
the USB connector on the small plate is connected with the USB connecting terminal on the main board through the flat cable;
shielding layers are added on the upper surface and the lower surface of the flat cable;
the flat cable first and last lines have the property of being set to ground GND.
2. The server of claim 1, wherein the mounting holes are electrically conductive coated to allow common mode signals on the small plates to reach the entire metal box through the conductive fixture.
3. The server capable of reducing radiation according to claim 2, wherein the fixed contact position between the plastic front casing and the metal casing is treated by conductive spraying to reduce the parasitic capacitance between the two surfaces, so that the common mode interference signal of the plastic front casing is transmitted to the metal casing.
4. The server capable of reducing radiation of claim 3, wherein the number of USB openings on the front plastic housing is two.
5. Radiation reduction server according to claim 1,
a first pin and a last pin of the VGA connecting terminal of the mainboard are connected with a GND line of the mainboard;
and a first pin and a last pin of the USB connecting terminal of the mainboard are connected with a GND line of the mainboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818600.2A CN107635389B (en) | 2017-09-12 | 2017-09-12 | Server case capable of reducing radiation and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818600.2A CN107635389B (en) | 2017-09-12 | 2017-09-12 | Server case capable of reducing radiation and server |
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| Publication Number | Publication Date |
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| CN107635389A CN107635389A (en) | 2018-01-26 |
| CN107635389B true CN107635389B (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710818600.2A Active CN107635389B (en) | 2017-09-12 | 2017-09-12 | Server case capable of reducing radiation and server |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761230B (en) * | 2018-05-17 | 2021-02-02 | 苏州浪潮智能科技有限公司 | Device for enhancing IO test effect of baffle of server prototype and use method |
| CN108521712A (en) * | 2018-06-04 | 2018-09-11 | 深圳市沃特沃德股份有限公司 | USB component and electronic equipment |
| CN108966558B (en) * | 2018-08-23 | 2020-09-18 | 苏州浪潮智能科技有限公司 | Low-radiation installation structure of front cable of server |
| CN109542819A (en) * | 2018-11-26 | 2019-03-29 | 郑州云海信息技术有限公司 | A kind of preposition I/O port of server and the implementation method for improving EMC performance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150947A (en) * | 2007-10-31 | 2008-03-26 | 中兴通讯股份有限公司 | Plastic shielding shell |
| CN201590969U (en) * | 2009-12-24 | 2010-09-22 | 天津市欣乐电子有限公司 | Housing with shielding property |
| WO2016198923A1 (en) * | 2015-06-12 | 2016-12-15 | Bosch Car Multimedia Portugal, S.A. | Mechanical fastening system for fastening two metal sheet parts |
| CN106488675A (en) * | 2016-10-20 | 2017-03-08 | 郑州云海信息技术有限公司 | A kind of server |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM496831U (en) * | 2014-08-08 | 2015-03-01 | Tpv Inventa Technology Co Ltd | Fixation structure for storage module |
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- 2017-09-12 CN CN201710818600.2A patent/CN107635389B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150947A (en) * | 2007-10-31 | 2008-03-26 | 中兴通讯股份有限公司 | Plastic shielding shell |
| CN201590969U (en) * | 2009-12-24 | 2010-09-22 | 天津市欣乐电子有限公司 | Housing with shielding property |
| WO2016198923A1 (en) * | 2015-06-12 | 2016-12-15 | Bosch Car Multimedia Portugal, S.A. | Mechanical fastening system for fastening two metal sheet parts |
| CN106488675A (en) * | 2016-10-20 | 2017-03-08 | 郑州云海信息技术有限公司 | A kind of server |
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| CN107635389A (en) | 2018-01-26 |
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Effective date of registration: 20191209 Address after: 215100 No. 1 Guanpu Road, Guoxiang Street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province Applicant after: Suzhou Wave Intelligent Technology Co., Ltd. Address before: 450000 Henan province Zheng Dong New District of Zhengzhou City Xinyi Road No. 278 16 floor room 1601 Applicant before: Zhengzhou Yunhai Information Technology Co. Ltd. |
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