CN206848886U - A kind of anti-error cut-off machine cabinet - Google Patents
A kind of anti-error cut-off machine cabinet Download PDFInfo
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- CN206848886U CN206848886U CN201720513989.5U CN201720513989U CN206848886U CN 206848886 U CN206848886 U CN 206848886U CN 201720513989 U CN201720513989 U CN 201720513989U CN 206848886 U CN206848886 U CN 206848886U
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- power switch
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- npn triode
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Abstract
The utility model discloses a kind of anti-error cut-off machine cabinet, including casing and the power switch S1 being arranged on casing, power switch S1 both ends couple a chassis power supply circuit, and power switch S1 and chassis power supply circuit couple a power-off and confirm circuit, and power-off confirms that circuit includes：Sensing element, it is arranged on casing, an induced voltage signal is exported for sensing whether human body is placed into its surface, and in its output end；Holding circuit is switched, power switch S1 both ends are coupled to, for maintaining the conducting state of chassis power supply circuit after power switch S1 is closed；Signal deteching circuit, is coupled to sensing element and switch holding circuit, and the induced voltage signal for being exported when sensing element disconnects switch holding circuit and recovers conducting after delay predetermined time after exceeding scheduled voltage；Prevent computer from being closed because power switch S1 is touched by false touch, there is the advantages of reliability of anti-error cut-off machine is high, power-off is with confirming circuit judges accurate and sensitive.
Description
Technical field
Cabinet field is the utility model is related to, more specifically, it relates to a kind of anti-error cut-off machine cabinet.
Background technology
For cabinet as the part in computer fittings, the main function that it rises is placement and fixed each computer fittings, is played
One support and protective effect, in addition, computer housing has the important function of the shielding of electromagnetic radiation, due to cabinet unlike CPU,
The accessories such as video card, mainboard can improve overall performance rapidly.
A kind of Small Computer Case is disclosed in Publication No. CN2716893Y Chinese patent, it have adjusted in cabinet
Portion's structure, power shelf is arranged on chassis frame front portion, hard disk drive support is fixed on the rear portion of chassis frame, made small-sized
Computer housing can also use the mainboard of the AT external of standard, can install two CD drives, can also use common machine
Case power supply, improves extended capability, adds the alternative of the aftermarket products such as mainboard, expansion card, CD drive, power supply,
Equipment investment is saved, improves the radiating condition of hard disk drive.
But in the cabinet course of work, it if touching the power switch S1 on cabinet unintentionally, can be missed computer
Touch and close, the work data for causing handling is lost.Very big economically unnecessary damage is easily brought to user
Lose.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of anti-error cut-off machine cabinet, only
Computer can not be closed by pressing power switch S1, prevent computer from being closed because power switch S1 is touched by false touch so as to reach.
To achieve the above object, the utility model provides following technical scheme：
A kind of anti-error cut-off machine cabinet, including casing and the power switch S1 being arranged on the casing, the power switch
S1 both ends couple a chassis power supply circuit, and the power switch S1 and the chassis power supply circuit couple a power-off and confirmed
Circuit, the power-off confirm that circuit includes：
Sensing element, it is arranged on the casing, for sensing whether human body is placed into its surface, and in its output end
Export an induced voltage signal；
Holding circuit is switched, is coupled to the both ends of the power switch S1, for being protected after power switch S1 closures
Handle the conducting state of the chassis power supply circuit；
Signal deteching circuit, the sensing element and the switch holding circuit are coupled to, for when the sensing element
The induced voltage signal of output disconnects the switch holding circuit after exceeding scheduled voltage and recovered after delay predetermined time
Conducting.
By using above-mentioned technical proposal, power supply is only pressed again in the case that finger to be put into people sensing element surface
Switch S1 could disconnect chassis power supply circuit, so as to reach the mesh for preventing that computer from being touched by false touch and closing by power switch S1
, prevent the work data in computer from being lost because closing by mistake, substantially increase the security of computer user work data.
Further, the power switch S1 and the sensing element are separately positioned on two adjacent side walls of the casing
On.
By using above-mentioned technical proposal, prevent the body part of people from touching sense while power switch S1 is met
Element is answered, further increases the reliability of anti-error touching.
Further, the false-touch prevention chimb that a circle is higher than the sensing element is provided with around the sensing element.
By using above-mentioned technical proposal, it is necessary to which sensing element surface can just be encountered by stretching into finger inside chimb, enter one
Step improves the reliability of anti-error touching.
Further, the sensing element is metal touch piece.
By using above-mentioned technical proposal, after human contact is to metal touch piece surface, can be produced rapidly on its surface
Induced voltage, so as to have the function that quickly to sense that human body abuts in its surface.
Further, the chassis power supply circuit includes cathode output end and negative input, and the power switch S1 is
Self-lock switch, the first end of the power switch S1 are coupled to the cathode output end of the chassis power supply circuit, and the power supply is opened
The negative input of the chassis power supply circuit, resistance R5 and the cabinet are coupled to after pass S1 the second end one resistance R5 of concatenation
The tie point ground connection of power circuit, the switch holding circuit include a NMOS tube N1, described in NMOS tube N1 drain electrode is coupled to
Power switch S1 first end, NMOS tube N1 grid and source electrode are coupled to the second end of the power switch S1.
Further, the signal deteching circuit includes：
Circuit is opened and closed, the switch holding circuit is coupled to, for switching holding circuit described in break-make；
State analysis circuit, the metal touch piece is coupled to, for the induced voltage letter exported when the sensing element
Number exceed scheduled voltage after, control it is described keying circuit disconnect it is described switch holding circuit simultaneously recover after delay predetermined time
Conducting.
Further, the keying circuit includes：
NPN triode Q3, its grounded emitter, its base stage are coupled to the state analysis circuit；
Normally closed relay KM1, the first end of its coil are coupled to NPN triode Q3 colelctor electrode, the second end of its coil
One second direct current VCC_2 is coupled to, its normally-closed contact switch is serially connected with NMOS tube N1 drain electrode with the power switch S1's
Between first end.
Further, the state analysis circuit includes：
NPN triode Q1, its base stage are coupled to the metal touch piece, and the electricity of its base stage concatenation one after concatenating a resistance R1
Its emitter stage is coupled to after resistance R2, its emitter stage is coupled to NPN triode Q3 base stage, coupling after its collector series connection one resistance R3
It is connected to one first direct current VCC_1；
Electric capacity C1, its both ends are respectively coupled to the collector and emitter of NPN triode Q1；
NPN triode Q2, its base stage are coupled to the colelctor electrode of NPN triode Q1, coupling after its collector series connection one resistance R4
The first direct current VCC_1 is connected to, its emitter stage is coupled to the emitter stage of NPN triode Q1；
One-way SCR BG1, its control pole are coupled to NPN triode Q2 colelctor electrode, and its anode is coupled to the first direct current
Electric VCC_1, its negative pole are coupled to NPN triode Q3 base stage.
By using above-mentioned technical proposal, after power switch S1 conducting chassis power supply circuits are pressed, NMOS tube is turned on, i.e.,
After disconnecting power switch S1, NMOS tube N1 still keeps chassis power supply circuit turn-on；After finger is put into metal touch piece, pass through
State analysis circuit turn-on one-way SCR BG1, so as to turn on NPN triode Q3, obtain normally closed relay KM1 electric, it is normally closed after
Electrical equipment KM1 normally-closed contact switches off, and disconnects chassis power supply circuit；After finger is removed from metal touch piece, pass through
State analysis circuit makes one-way SCR BG1 cross zero to cut-off, switchs normally closed relay KM1 normally-closed contact by opening and closing circuit
Closure, disconnected because power switch S1 is in, NMOS tube N1 grid is low level, and NMOS tube N1 recovers to initial cut-off shape
State.
Further, resistance R2 is variable resistance.
By using above-mentioned technical proposal, by regulation resistance R2 resistance, finger can be adjusted and be attached to metal touch piece
The partial pressure obtained afterwards at the base stage of NPN triode Q1, so as in initial debugging, be ensured by adjusting resistance R2 resistance
Finger can exactly trigger after touching metal touch piece and turn on NPN triode Q1.
Compared with prior art, the utility model has the advantages that：
（1）Only pressing power switch S1 again in the case that finger to be put into people sensing element surface could be by cabinet electricity
Source circuit disconnects, and so as to reach the purpose for preventing that computer from being touched by false touch and closing by power switch S1, prevents the work in computer
Make data to lose because closing by mistake, substantially increase the security of computer user work data；
（2）Power switch S1 and sensing element are separately positioned in two adjacent side walls of casing, around sensing element
The false-touch prevention chimb that a circle is higher than sensing element is provided with, further increases the reliability of anti-error touching；
（3）Sensing element is metal touch piece, and after human contact is to metal touch piece surface, sensing speed is fast and clever
It is quick；
（4）In initial debugging, after can ensuring that finger touches metal touch piece by adjusting resistance R2 resistance
It can exactly trigger and turn on NPN triode Q1, improve the accuracy of state analysis circuit judges.
Brief description of the drawings
Fig. 1 is the structural representation of the anti-error cut-off machine cabinet of the present embodiment；
Fig. 2 is that the power-off of the present embodiment confirms the circuit diagram of circuit.
Reference：1st, casing；4th, power-off confirms circuit；5th, metal touch piece；6th, holding circuit is switched；7th, signal detection
Circuit；8th, false-touch prevention chimb；9th, circuit is opened and closed；10th, state analysis circuit.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As depicted in figs. 1 and 2, a kind of anti-error cut-off machine cabinet, including casing 1 and the power switch S1 that is arranged on casing 1,
Power switch S1 both ends couple a chassis power supply circuit, and power switch S1 and chassis power supply circuit couple a power-off and confirmed
Circuit 4, power-off confirm that circuit 4 includes：
Sensing element, sensing element is metal touch piece 5, for sensing whether human body is placed into its surface, and at it
Output end exports an induced voltage signal；
Holding circuit 6 is switched, is coupled to power switch S1 both ends, for maintaining cabinet after power switch S1 closures
The conducting state of power circuit；
Signal deteching circuit 7, sensing element and switch holding circuit 6 are coupled to, for the sensing exported when sensing element
Voltage signal disconnects switch holding circuit 6 after exceeding scheduled voltage and recovers conducting after delay predetermined time.
As shown in figure 1, metal touch piece 5 and power switch S1 are separately mounted in 1 liang of adjacent side wall of casing.Sensing member
The false-touch prevention chimb 8 that a circle is higher than sensing element is fixed with around part, and finger must be stretched into inside chimb can just encounter sensing
Element surface.Further increase the reliability of anti-error touching.
As shown in Fig. 2 chassis power supply circuit includes cathode output end and negative input.Power switch S1 opens for self-locking
Close.Power switch S1 first end is coupled to the cathode output end of chassis power supply circuit, power switch S1 the second end concatenation one
The negative input of chassis power supply circuit is coupled to after resistance R5.Resistance R5 and chassis power supply circuit tie point are grounded.Switch
Holding circuit 6 includes a NMOS tube N1, and NMOS tube N1 drain electrode is coupled to power switch S1 first end, NMOS tube N1 grid
Power switch S1 the second end is coupled to source electrode.
Signal deteching circuit 7 includes：
Circuit 9 is opened and closed, switch holding circuit 6 is coupled to, for on-off switch holding circuit 6；
State analysis circuit 10, metal touch piece 5 is coupled to, the induced voltage signal for being exported when sensing element exceedes
After scheduled voltage, control opens and closes circuit 9 and disconnects switch holding circuit 6 and recover conducting after delay predetermined time.
Opening and closing circuit 9 includes：
NPN triode Q3, its grounded emitter, its base stage are coupled to state analysis circuit 10；
Normally closed relay KM1, the first end of its coil are coupled to NPN triode Q3 colelctor electrode, the second end of its coil
One second direct current VCC_2 is coupled to, its normally-closed contact switchs the first of the drain electrode for being serially connected with NMOS tube N1 and power switch S1
Between end；
Diode D1, its positive pole and negative pole are respectively coupled to first end and the second end of coil.
State analysis circuit 10 includes：
NPN triode Q1, its base stage is coupled to metal touch piece 5 after concatenating a resistance R1, and its base stage concatenates a resistance
Its emitter stage is coupled to after R2, its emitter stage is coupled to NPN triode Q3 base stage, is coupled after its collector series connection one resistance R3
In one first direct current VCC_1；
Electric capacity C1, its both ends are respectively coupled to the collector and emitter of NPN triode Q1；
NPN triode Q2, its base stage are coupled to the colelctor electrode of NPN triode Q1, coupling after its collector series connection one resistance R4
The first direct current VCC_1 is connected to, its emitter stage is coupled to the emitter stage of NPN triode Q1；
One-way SCR BG1, its control pole are coupled to NPN triode Q2 colelctor electrode, and its anode is coupled to the first direct current
Electric VCC_1, its negative pole are coupled to NPN triode Q3 base stage.
Resistance R2 is variable resistance.By regulation resistance R2 resistance, can adjust after finger is attached to metal touch piece 5
The partial pressure obtained at the base stage of NPN triode Q1, so as to which in initial debugging, people can be ensured by adjusting resistance R2 resistance
Finger can exactly trigger after touching metal touch piece 5 and turn on NPN triode Q1.
As shown in Fig. 2 the power-off of the present embodiment confirms that the operation principle of circuit 4 is：Machine is turned on when pressing power switch S1
After case power circuit, conducting NMOS tube N1 drain electrode and source electrode, after power switch S1 disconnects, NMOS tube N1 still keeps chassis power supply
Circuit turn-on；After finger is put into metal touch piece 5, induced voltage is produced on metal touch piece 5, i.e., in metal touch piece 5
Tie point exports induced voltage signal, and turns on NPN triode Q1 after resistance R1 and resistance R2 partial pressures, and electric capacity C1 is through NPN tri-
Pole pipe Q1 discharges, and ends NPN triode Q2, NPN triode Q2 colelctor electrode is in high level, turns on one-way SCR
BG1, so as to turn on NPN triode Q3, obtain normally closed relay KM1 electric, normally closed relay KM1 normally-closed contact switches off,
So as to disconnect NMOS tube N1 drain electrode and the connection at power switch S1 the second end, disconnect chassis power supply circuit；And then, when
After finger is removed from metal touch piece 5, NPN triode Q1 cut-off, electric capacity C1 chargings；After electric capacity C1 chargings terminate, the poles of NPN tri-
Pipe Q2 is turned on, and one-way SCR BG1 crosses zero to cut-off, NPN triode Q3 cut-offs, and normally closed relay KM1 normally-closed contact switch closes
Close, disconnected because power switch S1 is in, NMOS tube N1 grid is low level, and NMOS tube N1 recovers to initial cut-off shape
State.
Could be by cabinet so as to only press power switch S1 again in the case that finger is put into sensing element surface by people
Power circuit disconnects, and has reached the purpose for preventing that computer from being touched by false touch and closing by power switch S1, has prevented the work in computer
Data is lost because closing by mistake.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of anti-error cut-off machine cabinet, including casing (1) and the power switch S1 that is arranged on the casing (1), its feature exist
In the both ends of the power switch S1 couple a chassis power supply circuit, the power switch S1 and the chassis power supply circuit
Couple a power-off and confirm circuit (4), the power-off confirms that circuit (4) includes：
Sensing element, it is arranged on the casing (1), for sensing whether human body is placed into its surface, and in its output end
Export an induced voltage signal；
Holding circuit (6) is switched, is coupled to the both ends of the power switch S1, for being kept after power switch S1 closures
State the conducting state of chassis power supply circuit in residence；
Signal deteching circuit (7), the sensing element and the switch holding circuit (6) are coupled to, for when the sensing member
The induced voltage signal of part output disconnects the switch holding circuit (6) and after delay predetermined time after exceeding scheduled voltage
Recover conducting.
2. a kind of anti-error cut-off machine cabinet according to claim 1, it is characterised in that the power switch S1 and the sensing
Element is separately positioned in two adjacent side walls of the casing (1).
3. a kind of anti-error cut-off machine cabinet according to claim 1, it is characterised in that be provided with around the sensing element
False-touch prevention chimb (8) of one circle higher than the sensing element.
4. a kind of anti-error cut-off machine cabinet according to claim 1, it is characterised in that the sensing element is metal touch piece
(5)。
5. a kind of anti-error cut-off machine cabinet according to claim 4, it is characterised in that the chassis power supply circuit includes positive pole
Output end and negative input, the power switch S1 are self-lock switch, and the first end of the power switch S1 is coupled to described
The cathode output end of chassis power supply circuit, the second end of the power switch S1 are coupled to the cabinet electricity after concatenating a resistance R5
The negative input of source circuit, resistance R5 and the chassis power supply circuit tie point are grounded, switch holding circuit (6) bag
A NMOS tube N1 is included, NMOS tube N1 drain electrode is coupled to the first end of the power switch S1, NMOS tube N1 grid and source electrode
It is coupled to the second end of the power switch S1.
6. a kind of anti-error cut-off machine cabinet according to claim 5, it is characterised in that the signal deteching circuit (7) includes：
Circuit (9) is opened and closed, the switch holding circuit (6) is coupled to, for switching holding circuit (6) described in break-make；
State analysis circuit (10), the metal touch piece (5) is coupled to, for the induced voltage exported when the sensing element
After signal exceedes scheduled voltage, the keying circuit (9) is controlled to disconnect the switch holding circuit (6) and in the pre- timing of delay
Between after recover conducting.
7. a kind of anti-error cut-off machine cabinet according to claim 6, it is characterised in that the keying circuit (9) includes：
NPN triode Q3, its grounded emitter, its base stage are coupled to the state analysis circuit (10)；
Normally closed relay KM1, the first end of its coil are coupled to NPN triode Q3 colelctor electrode, the second end coupling of its coil
In one second direct current VCC_2, its normally-closed contact switch is serially connected with NMOS tube N1 drain electrode and the first of the power switch S1
Between end.
A kind of 8. anti-error cut-off machine cabinet according to claim 7, it is characterised in that state analysis circuit (10) bag
Include：
NPN triode Q1, its base stage are coupled to the metal touch piece (5), and the electricity of its base stage concatenation one after concatenating a resistance R1
Its emitter stage is coupled to after resistance R2, its emitter stage is coupled to NPN triode Q3 base stage, coupling after its collector series connection one resistance R3
It is connected to one first direct current VCC_1；
Electric capacity C1, its both ends are respectively coupled to the collector and emitter of NPN triode Q1；
NPN triode Q2, its base stage are coupled to the colelctor electrode of NPN triode Q1, are coupled to after its collector series connection one resistance R4
First direct current VCC_1, its emitter stage are coupled to the emitter stage of NPN triode Q1；
One-way SCR BG1, its control pole are coupled to NPN triode Q2 colelctor electrode, and its anode is coupled to the first direct current
VCC_1, its negative pole are coupled to NPN triode Q3 base stage.
9. a kind of anti-error cut-off machine cabinet according to claim 8, it is characterised in that resistance R2 is variable resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513989.5U CN206848886U (en) | 2017-05-10 | 2017-05-10 | A kind of anti-error cut-off machine cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513989.5U CN206848886U (en) | 2017-05-10 | 2017-05-10 | A kind of anti-error cut-off machine cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848886U true CN206848886U (en) | 2018-01-05 |
Family
ID=60795369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720513989.5U Expired - Fee Related CN206848886U (en) | 2017-05-10 | 2017-05-10 | A kind of anti-error cut-off machine cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754874A (en) * | 2018-12-27 | 2019-05-14 | 北京术锐技术有限公司 | Anti- error cut-off machine switch controlling device and method for robotic assisted surgery equipment |
-
2017
- 2017-05-10 CN CN201720513989.5U patent/CN206848886U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754874A (en) * | 2018-12-27 | 2019-05-14 | 北京术锐技术有限公司 | Anti- error cut-off machine switch controlling device and method for robotic assisted surgery equipment |
| US11803392B2 (en) | 2018-12-27 | 2023-10-31 | Beijing Surgerii Robotics Company Limited | Accidental-shutdown-proof switch control apparatus and method for robot-assisted surgical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20190510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |