CN105204573A - Liftable computer display based on heat-release electric induction switch - Google Patents
Liftable computer display based on heat-release electric induction switch Download PDFInfo
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- CN105204573A CN105204573A CN201510587887.3A CN201510587887A CN105204573A CN 105204573 A CN105204573 A CN 105204573A CN 201510587887 A CN201510587887 A CN 201510587887A CN 105204573 A CN105204573 A CN 105204573A
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Abstract
The invention discloses a liftable computer display based on a hot-release electric induction switch. The liftable computer display comprises a display main body and a lifting device, wherein the lifting device comprises a base plate, a sleeve, a threaded rod and a nut; the sleeve is fixed on the base plate; the threaded rod is arranged in the sleeve and is matched with the sleeve in an up-and-down sliding manner; the nut is matched with the threads of the threaded rod; the upper end of the threaded rod is fixedly connected with an installation joint which is arranged at the back side face of the display main body; a plane thrust bearing is arranged between the nut and the end part of the sleeve; the front panel of the display main body is provided with an infrared induction switching circuit; the infrared induction switching circuit is connected with a relay, and then is connected with a display main circuit. The display disclosed by the invention has the advantages that the height can be adjusted, and the requirements of users with different body heights can be met; the infrared induction switching circuit is arranged, so that the display automatically turns off when the user leaves, and the display automatically turns on when the user comes back, therefore the effects of convenience, energy saving and environmental friendliness are achieved.
Description
Technical field
The invention belongs to computer hardware field, be specifically related to a kind of liftable computer monitor based on pyroelectric sensing switch.
Background technology
Existing computer monitor, its bearing carried generally only has the function regulating front and rear angles, and does not have the function regulating upper-lower height.But for the user of different height, the angle of its observation display is different.Placing height due to display is fixing, and the user making height higher usually needs the curved back of the body, bows and watch display attentively, and this easily causes user's neck, lumbar fatigue, diseases induced, is unfavorable for user health.
A lot of user can forget pass display because of going out, and cause the waste of the energy, although present displays can enter sleep pattern under the state not having input signal, now stand-by power consumption is also at about 1W; In addition, when computing machine does not have activating power to manage, cannot accomplish that people leaves rear automatic shutdown, energy-conservation object can not be reached.When people returns, display also cannot be opened automatically.
Summary of the invention
The object of the invention is to provide a kind of liftable computer monitor based on pyroelectric sensing switch, solves the problem that existing display cannot regulate height and automatic switch.
Technical scheme of the present invention is: a kind of liftable computer monitor based on pyroelectric sensing switch, comprise display unit main body, also comprise jacking gear, described jacking gear comprises base plate, be fixed on the sleeve on base plate, to be arranged in sleeve and to slide up and down with sleeve the screw rod coordinated, and the nut to coordinate with screw flight, the upper end of described screw rod is fixedly connected with the erection joint be arranged on display unit main body dorsal surface, plain thrust bearing is provided with between described nut and sleeve ends, the front panel of display unit main body is provided with infrared sensing switch circuit, infrared sensing switch circuit is connected with display main circuit after connecting relay, infrared sensing switch circuit comprises the pyroelectric sensing probe be linked in sequence, pre-amplification circuit, comparator circuit and delay switch circuit, described pre-amplification circuit comprises amplifier X1A and amplifier X2B, the in-phase input end of amplifier X1A connects positive source by resistance R3, power cathode is connect by resistance R5, resistance R3 and resistance R5 forms 1/2Vcc and is biased, the in-phase input end of amplifier X1A connects power cathode by weakening electric capacity C3, the in-phase input end of amplifier X2B connects positive source by resistance R7, power cathode is connect by resistance R8, resistance R7 and resistance R8 forms 1/2Vcc and is biased, the in-phase input end of amplifier X2B connects power cathode by weakening electric capacity C6, comparator circuit comprises operational amplifier X3C, operational amplifier X4D, operational amplifier A 1 output terminal connects diode VD1 anode, operational amplifier A 2 output terminal connects diode VD2 anode, the negative electrode of diode VD1 and diode VD2 is connected to resistance R14, resistance R14 connecting triode Q1, delay switch circuit comprises NE555 timer, the collector of triode Q1 connects NE555D timer, 3 pins of NE555D timer connect the base stage of triode Q2, the collector connecting relay of triode Q2, the emitter of triode Q2 connects power cathode.
Further, be provided with first hole in the middle part of described base plate, the lower end of described sleeve and first hole grafting coordinate, and described erection joint is provided with second hole, and the upper end of described screw rod and second hole grafting coordinate.
Further, being provided with xsect in described sleeve is square guide pole, is provided with the third hole sliding up and down with guide pole and coordinate in described screw rod.
The present invention compared with prior art tool has the following advantages:
Display adjustable-height of the present invention, meet the needs of the user of different health height, and be provided with infrared sensing switch circuit, when people leaves, display is closed automatically, returns to be that display is opened automatically as people, i.e. convenient but also energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is infrared sensing switch circuit diagram of the present invention.
Embodiment
As shown in the figure, comprise display unit main body 1, also comprise jacking gear, described jacking gear comprises base plate 2, the sleeve 3 be fixed on base plate, be arranged in sleeve 3 and slide up and down the screw rod 4 that coordinates and the nut 5 with screw rod 4 threaded engagement with sleeve 3, the upper end of described screw rod 4 is fixedly connected with the erection joint 6 be arranged on display unit main body 1 dorsal surface, is provided with plain thrust bearing 7 between described nut 5 and sleeve 3 end.By jacking gear support displays main body 1, rotating nut 5 can be elevated display unit main body 1 easily, and with the use of satisfied different height user, eliminating user needs croucs to watch the problem of display attentively, is conducive to protection computer user healthy; Simultaneously because plain thrust bearing 7 can reduce the friction force between nut 5 and sleeve 3, therefore nut 5 rotates flexibly, and display unit main body 1 is highly easy to adjust.Be provided with first hole in the middle part of described base plate 2, the lower end of described sleeve 3 and first hole grafting coordinate, and socket connection makes sleeve 3 and base plate 2 split, and are convenient to separately transport and rapid-assembling.Described erection joint is provided with second hole, and the upper end of described screw rod 4 and second hole grafting coordinate, and socket connection enables screw rod 4 and erection joint split, and are also convenient to separately transport and rapid-assembling.Being provided with xsect in described sleeve 3 is square guide pole 8, be provided with in described screw rod 4 and slide up and down with guide pole 8 third hole coordinated, coordinated by guide pole 8 and third hole and moving up and down of screw rod 4 is led, when can avoid rotating nut 5, screw rod 4 rotates with nut 5, and lift adjustment is more convenient.Described first hole, second hole and third hole all can be the square hole of regular polygon hole or other shape.
Infrared sensing switch circuit comprises the pyroelectric sensing probe be linked in sequence, pre-amplification circuit, comparator circuit and delay switch circuit, described pre-amplification circuit comprises amplifier X1A and amplifier X2B, the in-phase input end of amplifier X1A connects positive source by resistance R3, power cathode is connect by resistance R5, resistance R3 and resistance R5 forms 1/2Vcc and is biased, the in-phase input end of amplifier X1A connects power cathode by weakening electric capacity C3, the in-phase input end of amplifier X2B connects positive source by resistance R7, power cathode is connect by resistance R8, resistance R7 and resistance R8 forms 1/2Vcc and is biased, the in-phase input end of amplifier X2B connects power cathode by weakening electric capacity C6, comparator circuit comprises operational amplifier X3C, operational amplifier X4D, operational amplifier A 1 output terminal connects diode VD1 anode, operational amplifier A 2 output terminal connects diode VD2 anode, the negative electrode of diode VD1 and diode VD2 is connected to resistance R14, resistance R14 connecting triode Q1, delay switch circuit comprises NE555 timer, the collector of triode Q1 connects NE555D timer, 3 pins of NE555D timer connect the base stage of triode Q2, the collector connecting relay of triode Q2, the emitter of triode Q2 connects power cathode.The general four high guaily unit that amplifier X1A, amplifier X2B, operational amplifier X3C, operational amplifier X4D composition is cheap, uses wherein X1A, X2B two high and low logical amplifiers of amplifiers composition.First order amplifier gain is: AV1=R6/R4=20, and second level amplifier gain is: AV2=R10/R9=100, and full gain is AV=20 × 100=2000=66dB.The other operational amplifier X3C of voltage comparator part LM324, operational amplifier X4D two amplifier composition voltage compare detection windows, 3 pin of high and low logical amplifier and 5 pin are all set to 1/2Vcc, i.e. 3V by resistance R3, resistance R5 and resistance R7, resistance R8.When infrared sensor detects the activity of human body, its weak voltage signals produced is through amplifying, be sent to 10,13 pin time, can detect that peak value is about the sine wave of 5V, so no matter positive half cycle or the negative half period of signal, one must be had in two comparers to export as low level, make 2 pin of NE555 jump into low level by high level, to control delay circuit work.And when infrared sensor does not detect that people is movable, from static circuit, this 3V direct current signal is added to 10,13 pin simultaneously, knows that again window voltage upper and lower limit is set to 3.4V and 2.6V by resistance R11, resistance R12, resistance R13, namely 9 pin are biased to 3.4V, and 12 pin are biased to 2.6V.Time static, voltage comparator output terminal 8,14 is low level, and switching tube ends, and 2 pin of NE555 are still high level, and delay circuit does not work.When infrared sensor detects the activity of people, when the positive half cycle of input signal, the level of 13 pin is higher than the 2.6V comparative voltage added by 12 pin, and lower comparer is by 14 pin output low levels, and VD2 ends; Now because 10 pin level are higher than 9 pin, upper comparer exports high level, and VD1 conducting, its high level makes switching tube saturation conduction, 2 pin of NE555 is pulled into low level, causes delay circuit work.When signal negative half period, upper and lower comparer output level is just contrary, i.e. 8 pin output low levels, and 14 pin export high level, VD2 conducting.Visible, as long as sensor detects physical activity, be no matter positive half cycle or the negative half period of signal, one in two comparers, must be had to export as high level, control delay circuit work by switch triode.
Delay circuit U1 uses single time base circuit NE555, delay time t=1.1R16 × C9 ≈ 60s.Its effect has be for when oneself leaving detection zone provide one section non-alarm delay time at two: one; Two is after oneself enters detection zone, provide the time turned off needed for detecting device.During delay circuit work, the high level of output makes triode ON that relay is connected, and display is opened.
The above embodiment only have expressed the embodiment of the application, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the application's protection domain.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from technical scheme design, can also make some distortion and improvement, these all belong to the protection domain of the application.
Claims (3)
1. the liftable computer monitor based on pyroelectric sensing switch, comprise display unit main body, it is characterized in that: also comprise jacking gear, described jacking gear comprises base plate, be fixed on the sleeve on base plate, to be arranged in sleeve and to slide up and down with sleeve the screw rod coordinated, and the nut to coordinate with screw flight, the upper end of described screw rod is fixedly connected with the erection joint be arranged on display unit main body dorsal surface, plain thrust bearing is provided with between described nut and sleeve ends, the front panel of display unit main body is provided with infrared sensing switch circuit, infrared sensing switch circuit is connected with display main circuit after connecting relay, infrared sensing switch circuit comprises the pyroelectric sensing probe be linked in sequence, pre-amplification circuit, comparator circuit and delay switch circuit, described pre-amplification circuit comprises amplifier X1A and amplifier X2B, the in-phase input end of amplifier X1A connects positive source by resistance R3, power cathode is connect by resistance R5, resistance R3 and resistance R5 forms 1/2Vcc and is biased, the in-phase input end of amplifier X1A connects power cathode by weakening electric capacity C3, the in-phase input end of amplifier X2B connects positive source by resistance R7, power cathode is connect by resistance R8, resistance R7 and resistance R8 forms 1/2Vcc and is biased, the in-phase input end of amplifier X2B connects power cathode by weakening electric capacity C6, comparator circuit comprises operational amplifier X3C, operational amplifier X4D, operational amplifier A 1 output terminal connects diode VD1 anode, operational amplifier A 2 output terminal connects diode VD2 anode, the negative electrode of diode VD1 and diode VD2 is connected to resistance R14, resistance R14 connecting triode Q1, delay switch circuit comprises NE555 timer, the collector of triode Q1 connects NE555D timer, 3 pins of NE555D timer connect the base stage of triode Q2, the collector connecting relay of triode Q2, the emitter of triode Q2 connects power cathode.
2. a kind of liftable computer monitor based on pyroelectric sensing switch according to claim 1, it is characterized in that, first hole is provided with in the middle part of described base plate, the lower end of described sleeve and first hole grafting coordinate, described erection joint is provided with second hole, and the upper end of described screw rod and second hole grafting coordinate.
3. a kind of liftable computer monitor based on pyroelectric sensing switch according to claim 1, is characterized in that, being provided with xsect in described sleeve is square guide pole, is provided with the third hole sliding up and down with guide pole and coordinate in described screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587887.3A CN105204573A (en) | 2015-09-16 | 2015-09-16 | Liftable computer display based on heat-release electric induction switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510587887.3A CN105204573A (en) | 2015-09-16 | 2015-09-16 | Liftable computer display based on heat-release electric induction switch |
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| CN105204573A true CN105204573A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510587887.3A Pending CN105204573A (en) | 2015-09-16 | 2015-09-16 | Liftable computer display based on heat-release electric induction switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546809A (en) * | 2020-04-24 | 2021-10-26 | 苏州苏门亿嘉数控科技有限公司 | Efficient bidirectional glue pouring machine |
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| CN202145291U (en) * | 2011-08-12 | 2012-02-15 | 王锐 | Infrared induction intelligent device of computer |
| CN202496104U (en) * | 2012-02-01 | 2012-10-17 | 苏州经贸职业技术学院 | Solar energy pyroelectric induction LED corridor lamp |
| CN202586921U (en) * | 2012-03-29 | 2012-12-05 | 温州永泰电器有限公司 | Intelligent infrared induction switch circuit |
| CN104141865A (en) * | 2014-07-24 | 2014-11-12 | 天津幻彩科技有限公司 | Lifting display |
| CN104536523A (en) * | 2014-12-23 | 2015-04-22 | 重庆宝丽佰格电子科技有限公司 | Liftable computer displayer |
| CN104680698A (en) * | 2013-11-30 | 2015-06-03 | 成都捷康特科技有限公司 | Infrared sensing circuit |
| CN205015789U (en) * | 2015-09-16 | 2016-02-03 | 成都市顶钻科技有限公司 | Liftable graphoscope based on electric inductive switch is released to heat |
-
2015
- 2015-09-16 CN CN201510587887.3A patent/CN105204573A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145291U (en) * | 2011-08-12 | 2012-02-15 | 王锐 | Infrared induction intelligent device of computer |
| CN202496104U (en) * | 2012-02-01 | 2012-10-17 | 苏州经贸职业技术学院 | Solar energy pyroelectric induction LED corridor lamp |
| CN202586921U (en) * | 2012-03-29 | 2012-12-05 | 温州永泰电器有限公司 | Intelligent infrared induction switch circuit |
| CN104680698A (en) * | 2013-11-30 | 2015-06-03 | 成都捷康特科技有限公司 | Infrared sensing circuit |
| CN104141865A (en) * | 2014-07-24 | 2014-11-12 | 天津幻彩科技有限公司 | Lifting display |
| CN104536523A (en) * | 2014-12-23 | 2015-04-22 | 重庆宝丽佰格电子科技有限公司 | Liftable computer displayer |
| CN205015789U (en) * | 2015-09-16 | 2016-02-03 | 成都市顶钻科技有限公司 | Liftable graphoscope based on electric inductive switch is released to heat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113546809A (en) * | 2020-04-24 | 2021-10-26 | 苏州苏门亿嘉数控科技有限公司 | Efficient bidirectional glue pouring machine |
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| PB01 | Publication | ||
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Application publication date: 20151230 |