CN201698278U - Low-radiation and environment-protecting integrated computer - Google Patents
Low-radiation and environment-protecting integrated computer Download PDFInfo
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- CN201698278U CN201698278U CN2010202708182U CN201020270818U CN201698278U CN 201698278 U CN201698278 U CN 201698278U CN 2010202708182 U CN2010202708182 U CN 2010202708182U CN 201020270818 U CN201020270818 U CN 201020270818U CN 201698278 U CN201698278 U CN 201698278U
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Abstract
The utility model discloses a low-radiation and environment-protecting integrated computer, which comprises a plastic shell, a computer core, a keyboard, a mouse and an electronic display screen, wherein the computer core and the electronic display screen are fixed in the plastic shell. The low-radiation and environment-protecting integrated computer is characterized in that: a conductive coating layer is coated onto the inner surface of the plastic shell and is of 5 micrometer to 20 micrometer in thickness; a piece of transparent glass with a conductive coating film is covered on the front surface of the display screen; the conductive coating layer on the inner surface of the plastic shell is electrically connected with the conductive coating film on the surface of the transparent glass and is grounded; a low-pass power supply filter is arranged between the core power supply and the external power supply, and the metal shell of the low-pass power supply filter is grounded. The benefits of the low-radiation and environment-protecting integrated computer are as follows: the computer radiation is reduced under the condition that the appearance of the ordinary integrated computer is not changed, meanwhile, the conducted emission through the power wire is effectively reduced, and the two indexes are all better than that of the ordinary integrated computer; and the low-radiation and environment-protecting integrated computer meets requirements on increasing of low electromagnetic radiation for people.
Description
Technical field
The utility model relates to integral computer, particularly a kind of low radiant environmental protection integral computer.
Background technology
Electromagnetic pollution has been acknowledged as and has come atmospheric pollution, water pollution, noise pollution the fourth-largest public hazards afterwards.One of the major pollutants that must control are listed electromagnetic radiation in the United Nations's human environment conference.
Show that through experimental study and investigation the electromagnetic radiation healthhazard is many-sided, complicated, main harm shows as following six broad aspect: ⑴ is to the harm of hematological system.⑵ to immune harm.⑶ to the harm of reproductive system.⑷ to the harm of central nervous system.⑸ to the harm of cardiovascular system.⑹ to the harm of vision system.
Computer is being played the part of more and more important role as a kind of electronic product of popularizing day by day in office and domestic. applications, the electromagnetic radiation that it sent simultaneously also becomes important pollution radiation source in working environment and the family, affects people's health day by day.And integral computer is in recent years at the emerging series products of IT industry, be characterized in equipment integrations such as mainboard, central processing unit, video card, internal memory, hard disk, CD-ROM drive and display have been arrived in the shell of display, only need add that mouse, keyboard and power lead just can work, save line between original mainframe box and cabinet and the display, be subjected to consumer's favor day by day.The numerous and confused series of products of releasing separately of each major company have the trend that replaces the conventional desktop computer greatly at present.But because integral computer all has been integrated in all electronic components in the shell of a plastic basis material, and place on the table, thereby make radiation source nearer from the distance of vitals such as the eyes of human body, brain, heart, radiation hazard also can be bigger.
Summary of the invention
The purpose of this utility model; be to propose a kind of low radiant environmental protection integral computer technical scheme; this schemes synthesis utilization shielding, filtering and grounding technology; choose reasonable shielding material, structure and filter parameter; optimization production technology; to reach reduction or to eliminate the radiation of integral computer, the purpose of protection surrounding environment to human body.
In order to achieve the above object, the technical solution of the utility model is:
A kind of low radiant environmental protection integral computer, comprise plastic casing, computer movement, keyboard, Genius mouse and electronic display, computer movement and electronic display are fixed in the plastic casing, wherein: described plastic casing inside surface is coated with one deck electrically-conducting paint, and electrically-conducting paint thickness is 5 microns to 20 microns; Cover one has and conducts electricity the clear glass of coatings in the front of electronic display; The electrically-conducting paint layer of plastic casing inside surface is electrically connected with the conduction coatings on clear glass surface and ground connection; Between computer movement power supply and external electric supply socket, be provided with the low pass power-supply filter, the metal shell ground connection of low pass power-supply filter.
Described electrically-conducting paint is that model is the copper silver electrically-conducting paint of CS-102.
Described electrically-conducting paint layer thickness is 10 microns.
Adopt conductive tape to be connected between the conduction coatings on described clear glass surface and the electrically-conducting paint layer of plastic casing inside surface.
The inner surface of outer cover of described Genius mouse is covered with the electrically-conducting paint layer; Described Genius mouse is connected with the computer movement with shielding line.
Described low pass power-supply filter comprises differential mode filtering circuit, common mode filtering circuit and metal shell, and differential mode filtering circuit and common mode filtering circuit are fixed in the betal can; Described differential mode filtering circuit is made up of with two identical differential mode capacitors of electric capacity two identical differential mode inductances of inductance value, and two differential mode capacitors are attempted by the two ends of two differential mode inductances; Described common mode filtering circuit is made up of with four identical common mode capacitance of electric capacity two identical common mode inductances of inductance value, described four common mode capacitance one ends are connected with four end points of two common mode inductances respectively, and four common mode capacitance other ends are connected with metal shell; The differential mode capacitor of described differential mode filtering circuit one end is connected to external electric supply socket, and the differential mode capacitor of the other end connects an end of two common mode inductances, and the other end of two common mode inductances is connected to computer movement power supply.
The inductance value of described differential mode inductance is 100 microhenry to 500 microhenrys.
The inductance value of described common mode inductance is 1 milihenry to 10 milihenry.
Described differential mode capacitor is the X2 safety electric capacity of 0.047 ~ 0.68uF.
Described common mode capacitance is Y2 safety electric capacity or the Cy feedthrough capacitor of 0.047 ~ 0.1uF.
The beneficial effects of the utility model are: the utility model effectively reduces electromagnetic radiation under the condition that does not change common integral computer outward appearance, in the frequency range of 2MHz ~ 18GHz, satisfy the Radiation Emission requirement of GJB151A, effectively reduce simultaneously by the conduction on the power lead and launch, satisfy the conduct radiation launch requirements of GJB151A in the frequency range of 10KHz ~ 10MHz, these two indexs all are better than common integral computer; The utility model had both met the development trend of present IT industry, can satisfy people's growing demand aspect low electromagnetic again.
Below in conjunction with embodiment and accompanying drawing the utility model is done a detailed description.
Description of drawings
Fig. 1 is an integral computer front schematic appearance;
Fig. 2 is an integral computer back schematic appearance;
Fig. 3 is the inboard partial structurtes synoptic diagram of the utility model plastic casing;
Fig. 4 is a low pass power-supply filter schematic diagram.
Embodiment
A kind of low radiant environmental protection integral computer embodiment, referring to Fig. 1 to Fig. 4, described computer comprises plastic casing 1, computer movement, keyboard, Genius mouse and electronic display 2,, keyboard, Genius mouse be connected with the power supply movement, computer movement and electronic display are fixed in the plastic casing, and described computer movement is exactly the computer part of knowing altogether usually, comprises parts such as mainboard, hard disk, CD drive, power supply; Different is: described plastic casing inside surface is coated with one deck electrically-conducting paint 3, and its thickness is 5 microns to 20 microns; Cover a transparent organic glass 4 that has conduction coatings 4-1 in the front of display screen; The electrically-conducting paint layer of plastic casing inside surface is connected and ground connection by lead 5 with the conduction coatings on organic glass surface; Between the power supply 6 of computer movement and external electric supply socket 7, be provided with low pass power-supply filter 8, the metal shell 8-1 ground connection of low pass power-supply filter.
Described electrically-conducting paint can have various ways, conductive carbon powder etc. for example, and what present embodiment adopted is that model is the copper silver electrically-conducting paint of CS-102, and extraordinary cementability is arranged between this coating and the plastics.
For the effect that guarantees to shield, the uniformity coefficient of its coating is particularly important, in order to guarantee the uniformity coefficient of coating, will guarantee that coating has certain thickness, so its thickness should be controlled at 5 microns to 20 microns, present embodiment with described its THICKNESS CONTROL of electrically-conducting paint layer at 10 microns.
Cover one has and conducts electricity the organic glass of coatings in the front of display screen; The electrically-conducting paint layer of the inside surface of shell is electrically connected with the conduction coatings on organic glass surface and ground connection; Can guarantee that the shell (comprising display window) of whole integral computer forms the shielding cavity of a continuous conduction.And by ground connection, high-frequency signal is released in the earth very soon, thus radiation-screening effectively, the employing conductive tape is connected between the conduction coatings on the described clear glass of present embodiment surface and the electrically-conducting paint layer of plastic casing inside surface.
Again owing in the power supply unit of integral computer a lot of HF switch elements are arranged, and these elements can produce a lot of high-frequency signals when work, high-frequency signal can cause the conduction emission along power lead, the high-frequency current (though very little) that conducts along power lead can be directed at and form external electromagnetic field on every side simultaneously, causes electromagnetic radiation.Therefore also must add the low pass power-supply filter at integral computer power interface place, and by reasonable ground connection, the high-frequency signal overwhelming majority is consumed in the dissipative cell of wave filter inside or release very soon in the earth by particular path, thus the Radiation Emission that reduces the conduction emission and cause by conduction.
Described low pass power-supply filter comprises differential mode filtering circuit, common mode filtering circuit and metal shell 8-1 as shown in Figure 4, and differential mode filtering circuit and common mode filtering circuit are fixed in the betal can; Described differential mode filtering circuit is made up of with two identical differential mode capacitor 8-4,8-5 of electric capacity two identical differential mode inductance 8-2,8-3 of inductance value, and two differential mode capacitors are attempted by the two ends of two differential mode inductances; Described common mode filtering circuit is made up of with four identical common mode capacitance 8-8,8-9,8-10,8-11 of electric capacity two identical common mode inductance 8-6,8-7 of inductance value, described four common mode capacitance one ends are connected with four end points of two common mode inductances respectively, and four common mode capacitance other ends are connected with metal shell; The differential mode capacitor of described differential mode filtering circuit one end is connected to external electric supply socket, and the differential mode capacitor of the other end connects an end of two common mode inductances, and the other end of two common mode inductances is connected to the movement power supply.
The inductance value of described differential mode inductance is 100 microhenry to 500 microhenrys, (being generally tens ~ hundreds of uH); What present embodiment adopted is 150 microhenrys.
The inductance value of described common mode inductance is 1 milihenry to 10 milihenry, (being generally several mH usually); What present embodiment adopted is 5 milihenries.
Described differential mode capacitor (claiming line capacitance again) adopts the X2 safety electric capacity of 0.047 ~ 0.68uF usually; That present embodiment adopts is 0.1uF.
Described common mode capacitance (claiming ground capacitance again) is generally the Y2 safety electric capacity of 0.047 ~ 0.1uF, and in order to obtain better high frequency performance, Cy adopts feedthrough capacitor sometimes; What present embodiment adopted is the Y2 safety electric capacity of 0.047uF.
The low pass power-supply filter can realize that the low-frequency power signal in 0 ~ 400Hz scope can substantially nondestructively pass through, and the above high-frequency signal of 10KHz just has bigger decay, as shown in Figure 4.Among the figure:
Differential mode inductance and differential mode capacitor mainly suppress the relatively low difference mode signal of frequency, usually frequency range is 10k ~ 1MHz, and common mode inductance mainly suppresses the relative higher common-mode signal of signal frequency with common mode capacitance, and frequency range is greater than 1MHz usually; ,
Frame of broken lines is represented the metal shell by ground connection among Fig. 4, its main application be with high-frequency signal shielding in filter cavity, provide an effectively leakage path over the ground for high-frequency signal simultaneously.
That present embodiment adopts is splendid to plastic basis material adhesion, meet European Union's newest standards (ROHS instruction), have good wearing quality and resistant of high or low temperature, no shedding phenomenon, the CS-102 electrically-conducting paint of the hard durable high-quality of paint film, inside surface spraying to the integral computer plastic casing, both can guarantee more reliably to make it become the supershielded body of a continuous conduction, can also reduce cost further.
The organic glass that present embodiment adopts is the anti-dazzle screen organic glass that the thick acrylic material of 0.8 ~ 1.0mm is made, and carries out non-glare treated in user oriented one side, is having the conduction coatings towards display one side, is installed between display and the shell front panel; The electrically-conducting paint layer of inner surface of outer cover adopts conductive tape to be electrically connected with around the conduction coatings of organic glass, can guarantee more effectively that the shell (comprising display window) of whole integral computer forms the cavity that continuous conduction shields fully.
The inner surface of outer cover of described Genius mouse is covered with the electrically-conducting paint layer too; Described Genius mouse can use the wireless mouse device also can use the wire mouse device, and when using the wire mouse device, the line of described Genius mouse and movement adopts shielding line, thereby makes external unit also have the function of radiation-screening.
The shielding construction of present embodiment excellence can reduce the hazards of electromagnetic radiation to the computer operator, can reduce the interference level to surrounding devices simultaneously again, can also effectively reduce the possibility of information leakage; Under the situation of limited reduction display brightness,, the shielding form effectively reduces the injury of display to operator's eyes by being installed; Present embodiment also can be transformed existing product, and improvement cost is low, makes this series integral computer almost have identical price with common integral computer.
Claims (10)
1. low radiant environmental protection integral computer, comprise plastic casing, computer movement, keyboard, Genius mouse and electronic display, computer movement and electronic display are fixed in the plastic casing, it is characterized in that: described plastic casing inside surface is coated with one deck electrically-conducting paint, and its thickness is 5 microns to 20 microns; Cover one has and conducts electricity the clear glass of coatings in the front of display screen; The electrically-conducting paint layer of plastic casing inside surface is electrically connected with the conduction coatings on clear glass surface and ground connection; Between movement power supply and external power supply, be provided with the low pass power-supply filter, the metal shell ground connection of low pass power-supply filter.
2. a kind of low radiant environmental protection integral computer according to claim 1 is characterized in that: described electrically-conducting paint is that model is the copper silver electrically-conducting paint of CS-102.
3. a kind of low radiant environmental protection integral computer according to claim 1 is characterized in that: described electrically-conducting paint layer thickness is 10 microns.
4. a kind of low radiant environmental protection integral computer according to claim 1 is characterized in that: adopt conductive tape to be connected between the conduction coatings on clear glass surface and the electrically-conducting paint layer of plastic casing inside surface.
5. a kind of low radiant environmental protection integral computer according to claim 1, it is characterized in that: the inner surface of outer cover of described Genius mouse is covered with the electrically-conducting paint layer; Described Genius mouse is connected with movement with shielding line.
6. a kind of low radiant environmental protection integral computer according to claim 1, it is characterized in that: described low pass power-supply filter comprises differential mode filtering circuit, common mode filtering circuit and metal shell, and differential mode filtering circuit and common mode filtering circuit are fixed in the betal can; Described differential mode filtering circuit is made up of with two identical differential mode capacitors of electric capacity two identical differential mode inductances of inductance value, and two differential mode capacitors are attempted by the two ends of two differential mode inductances; Described common mode filtering circuit is made up of with four identical common mode capacitance of electric capacity two identical common mode inductances of inductance value, described four common mode capacitance one ends are connected with four end points of two common mode inductances respectively, and four common mode capacitance other ends are connected with metal shell; The differential mode capacitor of described differential mode filtering circuit one end is connected to external electric supply socket, and the differential mode capacitor of the other end connects an end of two common mode inductances, and the other end of two common mode inductances is connected to the movement power supply.
7. a kind of low radiant environmental protection integral computer according to claim 6 is characterized in that: the inductance value of described differential mode inductance is 100 microhenry to 500 microhenrys.
8. a kind of low radiant environmental protection integral computer according to claim 6 is characterized in that: the inductance value of described common mode inductance is 1 milihenry to 10 milihenry.
9. a kind of low radiant environmental protection integral computer according to claim 6 is characterized in that: described differential mode capacitor is the X2 safety electric capacity of 0.047 ~ 0.68uF.
10. a kind of low radiant environmental protection integral computer according to claim 6 is characterized in that: described common mode capacitance is Y2 safety electric capacity or the Cy feedthrough capacitor of 0.047 ~ 0.1uF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202708182U CN201698278U (en) | 2010-07-26 | 2010-07-26 | Low-radiation and environment-protecting integrated computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202708182U CN201698278U (en) | 2010-07-26 | 2010-07-26 | Low-radiation and environment-protecting integrated computer |
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| CN201698278U true CN201698278U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202708182U Expired - Fee Related CN201698278U (en) | 2010-07-26 | 2010-07-26 | Low-radiation and environment-protecting integrated computer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467922A (en) * | 2014-12-29 | 2015-03-25 | 李大庆 | Information leakage prevention device |
| CN114077332A (en) * | 2020-08-20 | 2022-02-22 | 神讯电脑(昆山)有限公司 | Touch panel and touch equipment |
-
2010
- 2010-07-26 CN CN2010202708182U patent/CN201698278U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467922A (en) * | 2014-12-29 | 2015-03-25 | 李大庆 | Information leakage prevention device |
| CN104467922B (en) * | 2014-12-29 | 2019-03-15 | 李大庆 | Tempest device |
| CN114077332A (en) * | 2020-08-20 | 2022-02-22 | 神讯电脑(昆山)有限公司 | Touch panel and touch equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CAO GUOQIANG Free format text: FORMER OWNER: BEIJING SIYANG TECHNOLOGY CO., LTD. Effective date: 20110721 Owner name: LUO GUOHAO WANG SA |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110721 Address after: 100071 No. 1 hospital, Dongying East Street, Beijing, Fengtai District Co-patentee after: Luo Guohao Patentee after: Cao Guoqiang Co-patentee after: Wang Li Address before: 100071 No. 1 hospital, Dongying East Street, Beijing, Fengtai District Patentee before: Beijing Siyang Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110726 |