CN201117561Y - Safety switch - Google Patents
Safety switch Download PDFInfo
- Publication number
- CN201117561Y CN201117561Y CNU200720075086XU CN200720075086U CN201117561Y CN 201117561 Y CN201117561 Y CN 201117561Y CN U200720075086X U CNU200720075086X U CN U200720075086XU CN 200720075086 U CN200720075086 U CN 200720075086U CN 201117561 Y CN201117561 Y CN 201117561Y
- Authority
- CN
- China
- Prior art keywords
- switch
- contact
- polarity
- control device
- safety switch
- 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 safe switch. The permanent magnetic body with single polarity is added on the active contact of the switch. The safe switch also includes a non-contact control device which includes the magnetic body with two polarities. The technical proposal of the utility model can implement the opening and closing operation of the switch without contact and greatly lower the occurrence probability of electric shock time.
Description
Technical field
The utility model relates to a kind of safety switch that utilizes magnetic force to open and close.
Background technology
The mains switch of electrical equipment is the device that causes electric shock accidents easily always, especially for children and old man, every year, owing to operate miss or the electric shock accidents that causes because of carelessness all a lot of devices can take place.
Because electric shock accidents must contact just and can take place, if can avoid making contiguously the mains switch of electrical appliance, just can reduce the incidence of electric shock accidents to a great extent.
The utility model content
The utility model aims to provide a kind of safety switch, utilizes magnetic force, makes switch can open or closed under the situation of contact-making switch not, thereby reduces the probability of happening of electric shock accidents.
The utility model is achieved as follows:
A kind of safety switch is characterized in that, increases by a single permanent magnet of planting polarity on the movable contact of switch, also comprises a non-contact control device, comprises the magnet of two kinds of polarity.
Wherein, described non-contact control device is one to have the permanent magnet of two kinds of polarity.Perhaps, described non-contact control device is an electromagnet, the magnetic field that can produce two kinds of polarity.This electromagnet is by battery-operated.
The technical solution of the utility model can be carried out the opening and closing operations of switch under situation about not coming in contact, greatly reduce the probability of happening of electric shock time.
Description of drawings
Fig. 1 is the structure principle chart of safety switch of the present invention.
Embodiment
The utility model provides a kind of safety switch that utilizes magnetic force work.With reference to shown in Figure 1, generally speaking, the basic structure of switch is to comprise a fixing part 10 and a movable contact 20.In the utility model, on the movable contact 20 of switch, increase by a single permanent magnet 30 of planting polarity, such as being the permanent magnet N utmost point or the S utmost point.This safety switch also comprises a non-contact control device 40, and this non-contact control device 40 has the magnet of two kinds of polarity.Such as, this non-contact control device 40 is one to have the permanent magnet of two kinds of polarity.Perhaps, this non-contact control device 40 is an electromagnet, the magnetic field that can produce two kinds of polarity.For the sake of security, this electromagnet is by battery-operated.And operating voltage is within the scope of safe voltage.
Operation principle of the present utility model is as follows: use on the non-contact control device 40 with movable contact 20 on permanent magnet 30 opposite polarity parts near switch, then, be equivalent to open switch because the effect of magnetic force can pick up movable contact 20.Similarly, if with part identical on the non-contact control device 40 with permanent magnet 30 polarity on the movable contact 20 near switch because the effect of repulsion, movable contact 20 can be promoted and switch is closed, be equivalent to switch closed.
In Fig. 1, the permanent magnet 30 on the movable contact 20 is illustrated as the S utmost point, and non-contact control device 40 can be the permanent magnet with the S utmost point and N utmost point, also can be an electromagnet that has battery case.
The technical solution of the utility model can be carried out the opening and closing operations of switch under situation about not coming in contact, greatly reduce the probability of happening of electric shock time.
Claims (4)
1. a safety switch is characterized in that, increases by a single permanent magnet of planting polarity on the movable contact of switch, also comprises a non-contact control device, comprises the magnet of two kinds of polarity.
2. safety switch as claimed in claim 1 is characterized in that, described non-contact control device is one to have the permanent magnet of two kinds of polarity.
3. safety switch as claimed in claim 1 is characterized in that, described non-contact control device is an electromagnet, the magnetic field that can produce two kinds of polarity.
4. safety switch as claimed in claim 3 is characterized in that described electromagnet is by battery-operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720075086XU CN201117561Y (en) | 2007-09-28 | 2007-09-28 | Safety switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720075086XU CN201117561Y (en) | 2007-09-28 | 2007-09-28 | Safety switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117561Y true CN201117561Y (en) | 2008-09-17 |
Family
ID=39992142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720075086XU Expired - Fee Related CN201117561Y (en) | 2007-09-28 | 2007-09-28 | Safety switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117561Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517742A (en) * | 2014-12-29 | 2015-04-15 | 刁俊起 | Permanent magnet drive on-load voltage regulating switch |
-
2007
- 2007-09-28 CN CNU200720075086XU patent/CN201117561Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517742A (en) * | 2014-12-29 | 2015-04-15 | 刁俊起 | Permanent magnet drive on-load voltage regulating switch |
| US10366815B2 (en) | 2014-12-29 | 2019-07-30 | Junqi DIAO | Permanent magnet drive on-load tap-changing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20091028 |