CN202075685U - Radiation and static preventing device with functions of USB (Universal Serial Bus) concentrator - Google Patents
Radiation and static preventing device with functions of USB (Universal Serial Bus) concentrator Download PDFInfo
- Publication number
- CN202075685U CN202075685U CN2011201980066U CN201120198006U CN202075685U CN 202075685 U CN202075685 U CN 202075685U CN 2011201980066 U CN2011201980066 U CN 2011201980066U CN 201120198006 U CN201120198006 U CN 201120198006U CN 202075685 U CN202075685 U CN 202075685U
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- usb
- usb interface
- radiation
- preventing device
- fuse
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Abstract
The utility model relates to computer accessories, in particular to a radiation and static preventing device with the functions of a USB (Universal Serial Bus) concentrator. The power port P1 of 220 V of the radiation and static preventing device is connected with a selector switch S1; the selector switch S1 is connected with a safety protection circuit; the safety protection circuit is connected with a sensor circuit; a light emitting neon lamp DS1 in the sensor circuit and a fuse F1 are connected in parallel to a USB interface J5; the data port of the USB interface J5 is connected to a USB master control chip FE1.1S; and simultaneously, the data ports of a USB interface J1, a USB interface J2, a USB interface J3 and a USB interface J41 are respectively connected to the corresponding port of the USB master control chip FE1.1S. On the one hand, the radiation and static preventing device can conduct out over 95% current from a computer case which is not grounded, thus fundamentally preventing the computer which is not grounded from generating electromagnetic radiation; on the other hand, the radiation and static preventing device integrates the functions of the concentrator and overcomes the defects such as mutual interference of multiple former devices with single concentration function as well as low transmission speed.
Description
Technical field
The utility model relates to computer and accessory, particularly a kind of radiation proof with the usb hub function, anti-static device.
Background technology
At present, the method of known anti-electromagnetic radiation is to wear the radiation proof clothes, utilize the metal sandwich of exposure suit to shield the electromagnetic radiation that computer produces, because electromagnetic field is the characteristic of a netted structure and electromagnetic refraction and reflection, wearing protective clothing can not block electromagnetic wave is omnibearing, at the position that does not pass protective clothing, such as positions such as head, neck, hand, legs and feet will long term exposure in electromagnetic radiation environment, a large amount of investigation detect to be found, the electromagnetic radiation of unearthed computer 98% is that the computer equipment outer casing electrification produces.
The utility model content
The purpose of this utility model is to provide a kind of radiation proof with the usb hub function, anti-static device.
The purpose of this utility model is achieved through the following channels: a kind of radiation proof with the usb hub function, anti-static device, 220V power port P1 connects change-over switch S1, change-over switch S1 connects the safety protective circuit that is made of voltage reducing resistor R9 connection filter capacitor C1 and fuse F1, safety protective circuit connects sensor circuit, and sensor circuit is connected and composed by inducing luminous neon lamp DS1, insurance resistance R 10 and sense contact; Luminous neon lamp DS1 and fuse F1 are parallel-connected to USB interface J5, the FPDP of USB interface J5 is connected to USB main control chip FE1.1S, simultaneously, the FPDP of USB interface J1, USB interface J2, USB interface J3, USB interface J4 is connected respectively to the corresponding port of USB main control chip FE1.1S.
Further, described fuse F1 is a 2.5MA glass material fuse.
On the shell of the utility model equipment sense contact is installed; with hand touch sensible contact; if change-over switch S1 beats in the live wire position; then inducing luminous neon lamp DS1 is bright; change-over switch S1 is pushed other one side; then can not constitute the detection loop of low current, luminous neon lamp DS1 extinguishes, and protection connecting to neutral circuit has just been connected.On the main line circuit, safety protective circuit is set; voltage reducing resistor R9 reduces the electric current in loop; fuse F1 is the glass material band angle fuse of 2.5MA; if loop current is higher than the electric current that 2.5MA bears far below people's physical efficiency; then fuse F1 fusing; circuit disconnects, and protects the safety of equipment and human body thus.4 USB interface J1, J2, J3, J4 are connected respectively to USB main control chip FE1.1S, and J5 is transferred to computer with data command by USB interface.
A kind of radiation proof with the usb hub function of the utility model, anti-static device possess two kinds of functions simultaneously, on the one hand, this device can be derived the electric current more than 95% on the unearthed computer housing, thereby prevent that fundamentally unearthed computer from producing electromagnetic radiation, prevent to produce on the machine casing a large amount of static.In addition, it possesses concentrator function, and by increasing the transmission chip of USB2.0, the mutual interference of a plurality of equipment phase and the low shortcoming of transmission speed of the equipment of simple line concentration function before having overcome have realized satisfying the practical requirement to the high equipment of power requirement.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the utility model electrical block diagram;
Among the figure, sense contact-1, safety protective circuit-2; 220V power port P1-3, the luminous neon lamp DS1-5 of change-over switch S1-4, insurance resistance R 10-6; USB interface J5-7, USB interface J1-8, USB interface J2-9USB interface J3-10; USB interface J4-11; voltage reducing resistor R9-12, filter capacitor C1-13, fuse F1-14; sensor circuit-15, USB main control chip FE1.1S-16.
Embodiment
As shown in Figure 1, a kind of radiation proof of the utility model, anti-static device with the usb hub function, its 220V power port P13 connects change-over switch S14, change-over switch S14 connects the safety protective circuit 2 that is made of voltage reducing resistor R912 connection filter capacitor C113 and fuse F114, safety protective circuit 2 connects sensor circuit 15, and sensor circuit 15 is connected and composed by inducing luminous neon lamp DS15, insurance resistance R 106 and sense contact 1; Luminous neon lamp DS15 and fuse F114 are parallel-connected to USB interface J57, the FPDP of USB interface J57 is connected to USB main control chip FE1.1S16, simultaneously, the FPDP of USB interface J18, USB interface J29, USB interface J310, USB interface J411 is connected respectively to the corresponding port of USB main control chip FE1.1S16.
Described fuse F114 is a 2.5MA glass material fuse.When change-over switch S1 pushed the zero line position, the maximum current that zero line is flow through in fuse F114 restriction was 2.5MA, can avoid making zero line charged in a large number under a large amount of situations of leaking electricity of computer housing.When change-over switch S1 pushed the live wire position, the detection electric current that fuse F114 restriction flow on computer housing shell and the sense contact from the utility model device was up to 2.5MA, far below the sentient strength of current of human body.
The computer housing electric current is by the USB match lines of band shielding line; guiding the utility model equipment; at device interior; through connect the safety protective circuit that filter capacitor C1 and fuse F1 constitute by voltage reducing resistor R9; the finger touch sense contact; luminous neon lamp DS1 glows and represents that then cabinet has than multi-charge; radiation is big; dial change-over switch S1 to an other end this moment; use hand touch sensible contact again, luminous if luminous neon lamp DS1 does not have, expression computer casing metal part has constituted protection connecting to neutral circuit with the utility model equipment; electric current on the computer equipment shell is derived, and prevents the generation of electromagnetic radiation thus.Fuse F1 is used for ensureing the line security in whole loop, if current anomaly amplifies, surpasses then automatic cutout of 2.5MA.4 USB interface J1, J2, J3, J4 are connected respectively to USB main control chip FE1.1S, and J5 is transferred to computer with data command by USB interface.USB main control chip FE1.1S is that 4 USB port transmit data, LED light connects indication for the USB interface data, filtering circuit C1, C2, C3, C4, C5 reduce the issuable data of USB circuit to be disturbed, and divider resistance R1, R2, R3, R4, R5, R6, R7, R8 provide required voltage for USB main control chip FE1.1S.
Claims (2)
1. the radiation proof with the usb hub function, anti-static device, it is characterized in that: 220V power port P1 (3) connects change-over switch S1 (4), change-over switch S1 (4) connects the safety protective circuit (2) that is connected filter capacitor C1 (13) and fuse F1 (14) formation by voltage reducing resistor R9 (12), safety protective circuit (2) connects sensor circuit (15), and sensor circuit (15) is connected and composed by inducing luminous neon lamp DS1 (5), insurance resistance R 10 (6) and sense contact (1); Luminous neon lamp DS1 (5) and fuse F1 (14) are parallel-connected to USB interface J5 (7), the FPDP of USB interface J5 (7) is connected to USB main control chip FE1.1S (16), simultaneously, the FPDP of USB interface J1 (8), USB interface J2 (9), USB interface J3 (10), USB interface J4 (11) is connected respectively to the corresponding port of USB main control chip FE1.1S (16).
2. a kind of radiation proof with the usb hub function as claimed in claim 1, anti-static device is characterized in that: described fuse F1 (14) is a 2.5MA glass material fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201980066U CN202075685U (en) | 2011-06-14 | 2011-06-14 | Radiation and static preventing device with functions of USB (Universal Serial Bus) concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201980066U CN202075685U (en) | 2011-06-14 | 2011-06-14 | Radiation and static preventing device with functions of USB (Universal Serial Bus) concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202075685U true CN202075685U (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201980066U Expired - Fee Related CN202075685U (en) | 2011-06-14 | 2011-06-14 | Radiation and static preventing device with functions of USB (Universal Serial Bus) concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202075685U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105138483A (en) * | 2015-07-30 | 2015-12-09 | 浪潮软件集团有限公司 | USB interface expansion device and communication method thereof |
| CN105373508A (en) * | 2015-09-25 | 2016-03-02 | 河南英飞网络技术股份有限公司 | USB2.0 interface circuit with dual-channel power distribution function |
| CN105373507A (en) * | 2015-09-25 | 2016-03-02 | 河南英飞网络技术股份有限公司 | USB port function extension apparatus and method |
| CN105375915A (en) * | 2015-09-25 | 2016-03-02 | 河南英飞网络技术股份有限公司 | A high speed 7-port USB concentrator control circuit |
-
2011
- 2011-06-14 CN CN2011201980066U patent/CN202075685U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105138483A (en) * | 2015-07-30 | 2015-12-09 | 浪潮软件集团有限公司 | USB interface expansion device and communication method thereof |
| CN105138483B (en) * | 2015-07-30 | 2017-12-19 | 浪潮软件集团有限公司 | USB interface expansion device and communication method thereof |
| CN105373508A (en) * | 2015-09-25 | 2016-03-02 | 河南英飞网络技术股份有限公司 | USB2.0 interface circuit with dual-channel power distribution function |
| CN105373507A (en) * | 2015-09-25 | 2016-03-02 | 河南英飞网络技术股份有限公司 | USB port function extension apparatus and method |
| CN105375915A (en) * | 2015-09-25 | 2016-03-02 | 河南英飞网络技术股份有限公司 | A high speed 7-port USB concentrator control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Changsha Dechang Digital Technology Co., Ltd. Liu Hongjun Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20120614 |