CN2319946Y - Delayed cut-off protector of computer power source - Google Patents
Delayed cut-off protector of computer power source Download PDFInfo
- Publication number
- CN2319946Y CN2319946Y CN 97248741 CN97248741U CN2319946Y CN 2319946 Y CN2319946 Y CN 2319946Y CN 97248741 CN97248741 CN 97248741 CN 97248741 U CN97248741 U CN 97248741U CN 2319946 Y CN2319946 Y CN 2319946Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- switch
- power
- computer
- protector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a delayed cut-off protector for a computer power supply, which is composed of a switching device and a timing device, wherein, the switching device is a switching relay with double knife and double throw, two normally open contacts on the switching relay are respectively connected with one end of the live wire and the earth wire on a power switch of a computer, and the other end of the live wire and the earth wire is respectively connected with two common contacts of the switching relay, and the signals of the driving end are controlled by the timing device which can be an electronic timer. When the original power switch is switched off through mis-operation, the power can be normally supplied without power-off in a preset time so as to make users have time to treat in time emergencies, and the delayed cut-off protector avoids the occurrence of data loss or system damage caused by the power-off resulted from the mis-operation.
Description
The utility model relates to a kind of control device of computer power supply, refers to especially a kind ofly combine with the power supply of computer, when making just at work computer by accident power-off, can be in the time of setting, and the delay power-off protection apparatus of maintenance normal power supply.
Press, the general host computer that uses, wherein all can be equiped with a power supply, because of this power supply only by the switching of switch, so, when switch is closing state, power supply is also closed thereupon, and the stop supplies power supply is given host computer at once, and makes the user in operation, as by other unwitting people or oneself because of carelessness switch cuts out, failed time enough, with just in the data storing of operation in hard disk or other access device, and then cause just in the data of operation and losing of document information, even causing the entire job formula to damage, this kind situation is the easiest to be common in the system of windows workspace system and local-area network.
For commonly using the various shortcomings of device construction more than improving; main purpose of the present utility model; be to provide a kind of delay power-off protection apparatus of computer power supply; when misoperation disconnects former mains switch; can be in the time of setting; keep normal power supply and do not cut off the power supply, make the user can do emergency processing timely if having time, avoided taking place because of the misoperation outage causes the situation of loss of data or system damage.
Further purpose of the present utility model is providing a kind of delay power-off protection apparatus of computer power supply, and its timing is set, can design in advance and burning in chip, can also the outside mode of adjusting change its setting.
In order to realize the foregoing invention purpose, the utility model is made of a switching device and a time set, wherein, described switching device is the switch relay of a dpdt double-pole double-throw (DPDT), two normally open contacts on it respectively with computer power switch on live wire and ground wire one end join, this live wire and the ground wire other end then join with two common joints of described switch relay respectively, and the signal of its drive end is controlled by time set.Described time set can be electronic timer.
Owing to adopt above-mentioned design, when normal power supply, former computer power switch closes, self-contained circuit equipment has, the drive end of described switch relay also has, therefore switch closes to the normally open contact from the normally off contact, because of normal open switch belongs to relation in parallel with the switch of former power supply, so power supply is given power supply in the machine by this switch relay, when misoperation disconnects former mains switch, therefore power supply in the machine for disconnecting, and also therefore, the drive end of this switch relay still has, switch still is combined in the normally open contact, and computer keeps normal power supply.At this moment, the disconnection of former mains switch starts described time set, it can be the device of electronic timer and so on, pick up counting, close again, then do not influence work as former mains switch in timing time, as surpassing setting-up time, then by the electricity of time set cut-off switch relay drive end, then switch closes to the normally off contact, does not influence the normal function of former power supply and switch.Because in the time of setting, the utility model can keep normal power supply and not cut off the power supply, and makes the user can do emergency processing timely if having time, avoided taking place because of the misoperation outage causes the situation of loss of data or system damage.
Below in conjunction with drawings and the specific embodiments the utility model is described in further details again.
Fig. 1 is a circuit diagram of the present utility model:
Fig. 2 is a working envelope schematic diagram of the present utility model.
See also Fig. 1; shown in Figure 2; the delay power-off protection apparatus of a kind of computer power supply of the utility model; formed by switching device 10 and time set 30 that the power supply 20 with computer joins; described switching device 10 is the switch relay of a dpdt double-pole double-throw (DPDT); one end normally open contact 13 of two normal open switch on it respectively with power supply 20 on the live wire 22 and ground wire 23 1 ends of switch 21 join; this live wire 22 and ground wire 23 other ends then all join with two common joints 12 of this switch relay; the signal of its drive end 11; be sign 2 in the present embodiment; 7 parts are controlled by time set.
When normal power supply, former mains switch 21 closes, self-contained circuit equipment has, the drive end 11 of this switch relay also has, therefore switch closes to normally open contact 13 from normally off contact 14, because of normal open switch belongs to relation in parallel with the switch 21 of former power supply, so live wire 22 on the power supply 20 and ground wire 23 can be via its conducting power supplies, power supply is given power supply in the machine by this switch relay, when misoperation cut-off switch 21, therefore power supply in the machine for disconnecting, and also therefore, the drive end 11 of this switch relay still has, switch still is combined in normally open contact 13, and computer keeps normal power supply.At this moment, the disconnection of former mains switch 21 starts time set 30, it can be the device of electronic timer and so on, pick up counting, close again as former mains switch 21 in timing time, then do not influence work, as surpassing setting-up time, and during the no any action of the mains switch 21 on the computer, then by time set 30 cut-off switch relay drive ends 11, then switch closes to normally off contact 14, makes that live wire 22 and the ground wire 23 on the power supply 20 also closed thereupon, does not influence the normal power supply of former power supply 20, mains switch 21.
Claims (2)
1, a kind of delay power-off protection apparatus of computer power supply; constitute by a switching device and a time set; it is characterized in that: described switching device is the switch relay of a dpdt double-pole double-throw (DPDT); two normally open contacts on it respectively with computer power switch on live wire and ground wire one end join; this live wire and the ground wire other end then join with two common joints of described switch relay respectively, and the signal of its drive end is controlled by time set.
2, the delay power-off protection apparatus of a kind of computer power supply according to claim 1 is characterized in that: described time set is an electronic timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97248741 CN2319946Y (en) | 1997-12-09 | 1997-12-09 | Delayed cut-off protector of computer power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97248741 CN2319946Y (en) | 1997-12-09 | 1997-12-09 | Delayed cut-off protector of computer power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319946Y true CN2319946Y (en) | 1999-05-19 |
Family
ID=33955840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97248741 Expired - Fee Related CN2319946Y (en) | 1997-12-09 | 1997-12-09 | Delayed cut-off protector of computer power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319946Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948034A (en) * | 2010-06-09 | 2013-02-27 | 日产自动车株式会社 | Charging control apparatus and charging control method |
| CN109085514A (en) * | 2018-08-16 | 2018-12-25 | 北京泰恒众信科技有限公司 | Break period test method and tester |
-
1997
- 1997-12-09 CN CN 97248741 patent/CN2319946Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948034A (en) * | 2010-06-09 | 2013-02-27 | 日产自动车株式会社 | Charging control apparatus and charging control method |
| US9379564B2 (en) | 2010-06-09 | 2016-06-28 | Nissan Motor Co., Ltd. | Charging control apparatus and charging control method |
| CN109085514A (en) * | 2018-08-16 | 2018-12-25 | 北京泰恒众信科技有限公司 | Break period test method and tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |