CN106936124A - A kind of electrical equipment uses safe method for designing - Google Patents
A kind of electrical equipment uses safe method for designing Download PDFInfo
- Publication number
- CN106936124A CN106936124A CN201710194924.3A CN201710194924A CN106936124A CN 106936124 A CN106936124 A CN 106936124A CN 201710194924 A CN201710194924 A CN 201710194924A CN 106936124 A CN106936124 A CN 106936124A
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- CN
- China
- Prior art keywords
- electrical equipment
- designing
- start button
- safe method
- equipment uses
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
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- Keying Circuit Devices (AREA)
Abstract
A kind of electrical equipment uses safe method for designing：To a latching circuit and start button is designed on the power circuit of electrical equipment, exchange (or direct current) contactor in latching circuit is in parallel with start button by the normally opened auxiliary contact of itself.
Description
First, technical field：
A kind of electrical equipment is related to appliance circuit design field, particularly living electric apparatus to use using the method for designing of safety
Circuit safety is designed.
2nd, background technology：
Existing security appliance design, usually designs, but use safety to electrical equipment according to the design standard of explosion-proof electric apparatus
Requirement for, not enough, such as Wednesday on March 1st, 2017, near the automobile city of Taizhou plain occur fire together, according to preliminary
The reason of fire of acquisition is：At that time, the previous day market was closed the door, and master on off is closed, wherein the electricity of in market a baking electrical equipment
Source is not closed, and employee just comes home from work, second day, and market is opened the door, and master on off is opened, but the employee does not go to work also, and toasts electricity
Device is but started working, and causes thermal initiation fire, specific definite reason of fire, is not known also at present, is judged with general knowledge, on
Electrical equipment is stated using the disaster possibility for producing, is in daily life to occur, when people makes mistakes after all, how we set
Meter one allows people in error, can also reduce electrical equipment and be occurred using the disaster for producing
3rd, the content of the invention：
I proposes a kind of method for designing of electrical equipment using safety according to the above-mentioned error disaster that may occur, even if
Forget to close electrical equipment power switch in itself, as long as master on off is closed, electrical equipment would not occur using danger.
4th, specific embodiment：
To design one latching circuit and start button, the exchange (or direct current) in latching circuit on the power circuit of electrical equipment
Contactor is in parallel with start button by the normally opened auxiliary contact of itself, and so, after power supply master on off is connected, start button is pressed
Under, contactor action, auxiliary contact closure carries out state holding, now unclamps start button again, contactor also will not dead electricity break
Open, so that electrical equipment and power on.
Power supply master on off disconnect after, the latching circuit on the power circuit of electrical equipment will be powered off, when power supply master on off again
After connection, because the latching circuit on the power circuit of electrical equipment is not triggered, electrical equipment is not turned on power supply, and electrical equipment would not be because
It is reclosing and energization work for power supply master on off；
After power supply master on off is reclosed, such as want to allow this electrical work, start button is pressed except unartificial, contactor is moved
Make, auxiliary contact closure carries out state holding, start button is now unclamped again, contactor also will not dead electricity disconnection, electrical equipment and electricity
Source is connected, and electrical equipment will start working.
So as to prevent human error to cause electrical equipment to work automatically the potential safety hazard of generation
Note：
Circuit self-locking definition in Baidupedia：Exchange (or direct current) contactor makes line by the normally opened auxiliary contact of itself
Circle be always at the phenomenon of electricity condition is called self-locking.
This normally opened auxiliary contact is just called self-holding contact.
Such as that normally opened auxiliary contact are in parallel with start button, so, when start button is pressed, contactor action, auxiliary is touched
Point closure, carries out state holding, and start button is now unclamped again, and contactor also will not dead electricity disconnection.
Claims (1)
1. a kind of electrical equipment uses safe method for designing：Pressed to one latching circuit of design and startup on the power circuit of electrical equipment
Button, exchange (or direct current) contactor in latching circuit is in parallel with start button by the normally opened auxiliary contact of itself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194924.3A CN106936124A (en) | 2017-03-07 | 2017-03-07 | A kind of electrical equipment uses safe method for designing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194924.3A CN106936124A (en) | 2017-03-07 | 2017-03-07 | A kind of electrical equipment uses safe method for designing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106936124A true CN106936124A (en) | 2017-07-07 |
Family
ID=59425786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710194924.3A Pending CN106936124A (en) | 2017-03-07 | 2017-03-07 | A kind of electrical equipment uses safe method for designing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106936124A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048793A2 (en) * | 1980-09-25 | 1982-04-07 | Robert Bosch Gmbh | Post power failure starting suppressor in electrical appliances |
| CN2075392U (en) * | 1990-08-20 | 1991-04-17 | 欧继强 | Switch with auto-off when power cut |
| CN101304141A (en) * | 2008-04-02 | 2008-11-12 | 上海应用技术学院 | Auto-power-off line-delaying board |
| CN201430527Y (en) * | 2009-06-25 | 2010-03-24 | 中冶集团华冶资源开发有限责任公司 | Control device used in rectifier cabinet |
| CN203057636U (en) * | 2013-01-14 | 2013-07-10 | 昆明理工大学 | Power-off self-lock switch |
| CN205177715U (en) * | 2015-11-30 | 2016-04-20 | 济南大学 | Automatic protection switch cuts off power supply |
-
2017
- 2017-03-07 CN CN201710194924.3A patent/CN106936124A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048793A2 (en) * | 1980-09-25 | 1982-04-07 | Robert Bosch Gmbh | Post power failure starting suppressor in electrical appliances |
| CN2075392U (en) * | 1990-08-20 | 1991-04-17 | 欧继强 | Switch with auto-off when power cut |
| CN101304141A (en) * | 2008-04-02 | 2008-11-12 | 上海应用技术学院 | Auto-power-off line-delaying board |
| CN201430527Y (en) * | 2009-06-25 | 2010-03-24 | 中冶集团华冶资源开发有限责任公司 | Control device used in rectifier cabinet |
| CN203057636U (en) * | 2013-01-14 | 2013-07-10 | 昆明理工大学 | Power-off self-lock switch |
| CN205177715U (en) * | 2015-11-30 | 2016-04-20 | 济南大学 | Automatic protection switch cuts off power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |