CN204927179U - Magnet explosion -proof switch - Google Patents
Magnet explosion -proof switch Download PDFInfo
- Publication number
- CN204927179U CN204927179U CN201520685230.6U CN201520685230U CN204927179U CN 204927179 U CN204927179 U CN 204927179U CN 201520685230 U CN201520685230 U CN 201520685230U CN 204927179 U CN204927179 U CN 204927179U
- Authority
- CN
- China
- Prior art keywords
- magnet
- contact
- built
- seal casinghousing
- 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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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model provides a magnet explosion -proof switch, including seal shell, external switch magnet, built -in magnet, movable contact mechanism, stationary contact mechanism, inside built -in magnet was fixed in seal shell, external switch magnet was located the seal shell outside, and external switch magnet direction of the magnetic poles perpendicular to embeds magnet direction of the magnetic poles. The utility model discloses a pure mechanical structure need not outer power supply source, and is sealed totally except that advancing the outlet, and the reliability is high, and the simple structure is convenient, and the interact through magnetic field, can two return circuits of simultaneous control, and can also make permanent magnet play the magnetic blow -out effect to electric arc when the contact divides disconnected load current, make electric arc disperse fast, improved the breaking capacity of switch, applicable in there being combustible gas, the high low voltage equipment who easily fires, easily explodes the environment under does explosion -proof switch usefulness.
Description
Technical field
The utility model relates to a kind of magnet flame-proof switch, and this magnet flame-proof switch device has been applicable to fuel gas, under inflammable, explosive environments, belongs to technical field of electric equipment.
Background technology
Existing flame-proof switch mainly contains following two kinds of structures: one is that employing seal is airtight by switch gear room, isolated external flammable gas, and the knob of control switch or button directly contact with the contact being arranged in switch gear room, switch explosion-proof performance and air-proof condition have a significant impact and Seal Design is complicated; Two is adopt vacuum extinction at present more, and namely flame-proof switch main contacts device is sealed in vacuum tank, and therefore vacuum degree of vessel and slider material etc. have a significant impact arc extinguishing, poor in anti-explosion property, and cost is high, generally can only control single loop simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of magnet flame-proof switch, overcomes the design complexity of above-mentioned prior art existence, the defect of poor in anti-explosion property.
The utility model comprises seal casinghousing, external switch magnet, built-in magnet, dynamic have a sudden inspiration structure, stationary contact mechanism.Built-in magnet is fixed on seal casinghousing inside, and external switch magnet is positioned at seal casinghousing outside, and external switch magnet poles direction is perpendicular to built-in magnet poles direction.Dynamic structure of having a sudden inspiration comprises contact magnet, hard spring, and contact magnet is connected with the interference of hard spring, and contact magnet polarities and built-in magnet are corresponding one pendant polar identical, and hard spring to be fixed on seal casinghousing and to be connected with anti-explosion electric cable.Stationary contact mechanism comprises static contact and contact, static contact is between contact magnet and seal casinghousing or between contact magnet and built-in magnet, static contact to be fixed on seal casinghousing and to be connected with anti-explosion electric cable, and contact weld is on static contact, and anti-explosion electric cable connects external circuit via clamp nut.
The utility model adopts pure mechanical structure, without the need to outer power supply source, seal completely except wire inlet-outlet, reliability is high, simple structure is convenient, and by the interaction in magnetic field, two loops can be controlled simultaneously, permanent magnet can also be made when contact disjunction load current to play magnetic blow-out effect to electric arc, make electric arc rapid dispersion, improve the breaking capacity of switch, be applicable to fuel gas, the high and low voltage electrical equipment equipment under inflammable, explosive environments does flame-proof switch and uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: flame-proof switch seal box 1, external switch magnet 2, built-in magnet 3, contact magnet 4, hard spring 5, anti-explosion electric cable 6, static contact 7, anti-explosion electric cable 8, contact 9, contact magnet 10, hard spring 11, anti-explosion electric cable 12, static contact 13, anti-explosion electric cable 14, contact 15, clamp nut 16.
Embodiment
Below in conjunction with drawings and Examples, following detailed description is done to the utility model.
As seen from the figure, the utility model comprises seal casinghousing 1, external switch magnet 2, built-in magnet 3, dynamic have a sudden inspiration structure, stationary contact mechanism.Execution mode one: built-in magnet 3 is fixed in seal casinghousing 1, it is outside that external switch magnet 2 is positioned at seal casinghousing 1, and external switch magnet 2 pole orientation is perpendicular to built-in magnet 3 pole orientation.Dynamic structure of having a sudden inspiration comprises contact magnet 4, hard spring 5, and contact magnet 4 is connected with hard spring 5 interference, and contact magnet 4 polarity and built-in magnet 3 are corresponding one pendant polar identical, and hard spring 5 to be fixed on seal casinghousing 1 and to be connected with anti-explosion electric cable 6.Structure of having a sudden inspiration comprises static contact 7 and contact 9, static contact 7 between contact magnet 4 and seal casinghousing 1 with contact magnet 4 opposite position, static contact 7 to be fixed on seal casinghousing 1 and to be connected with anti-explosion electric cable 8, contact 9 is welded on static contact 7, and anti-explosion electric cable 6,8 connects external circuit via clamp nut 16.
External switch magnet 2 is contrary with contact magnet 4 opposite position magnetic pole, and when its geometric position center line overlaps with built-in magnet 3 geometric position center line, contact magnet 4 contacts with contact 9, and loop is connected; Otherwise contact magnet 4 and contact 9 depart from, loop disconnects.
Execution mode two: external switch magnet 2 pole orientation is perpendicular to built-in magnet 3 pole orientation, and built-in magnet 3 is fixed in seal casinghousing 1, respectively there are one group of dynamic have a sudden inspiration structure, stationary contact mechanism in built-in magnet 3 two ends.Dynamic structure of having a sudden inspiration comprises contact magnet 10, hard spring 11, contact magnet 10 is connected with hard spring 11 interference, and contact magnet 10 polarity and built-in magnet 3 are corresponding one pendant polar identical, hard spring 11 to be fixed on seal casinghousing 1 and to be connected with anti-explosion electric cable 12.Stationary contact mechanism comprises static contact 13 and contact 15, static contact 13 between contact magnet 10 and seal casinghousing 1 with contact magnet 10 opposite position, static contact 13 to be fixed on seal casinghousing 1 and to be connected with anti-explosion electric cable 14, contact 15 is welded on static contact 13, and anti-explosion electric cable 12,14 connects external circuit via clamp nut 16.
External switch magnet 2 is identical with contact magnet 10 opposite position magnetic pole, and when its geometric position center line overlaps with built-in magnet 3 geometric position center line, contact magnet 10 contacts with contact 15, and loop is connected; Otherwise contact magnet 10 and contact 15 depart from, loop disconnects.
Claims (4)
1. a magnet flame-proof switch, comprise seal casinghousing (1), external switch magnet (2), built-in magnet (3), dynamic have a sudden inspiration structure, stationary contact mechanism, it is characterized in that: it is inner that built-in magnet (3) is fixed on seal casinghousing (1), it is outside that external switch magnet (2) is positioned at seal casinghousing (1), and external switch magnet (2) pole orientation is perpendicular to built-in magnet (3) pole orientation; Dynamic structure of having a sudden inspiration comprises contact magnet (4), hard spring (5), contact magnet (4) is connected with hard spring (5) interference, and contact magnet (4) polarity and built-in magnet (3) are corresponding one pendant polar identical, it is upper and be connected with anti-explosion electric cable (6) that hard spring (5) is fixed on seal casinghousing (1); Structure of having a sudden inspiration comprises static contact (7) and contact (9), static contact (7) be positioned between contact magnet (4) and seal casinghousing (1) with contact magnet (4) opposite position, static contact (7) is fixed on seal casinghousing (1) and goes up and be connected with anti-explosion electric cable (8), contact (9) is welded on static contact (7), and anti-explosion electric cable (6,8) connects external circuit via clamp nut (16).
2. a kind of magnet flame-proof switch according to claim 1, is characterized in that: external switch magnet (2) is contrary with contact magnet (4) opposite position magnetic pole.
3. a kind of magnet flame-proof switch according to claim 1 and 2, it is characterized in that: external switch magnet (2) pole orientation is perpendicular to built-in magnet (3) pole orientation, built-in magnet (3) is fixed in seal casinghousing (1), and respectively there are one group of dynamic have a sudden inspiration structure, stationary contact mechanism in built-in magnet (3) two ends; Dynamic structure of having a sudden inspiration comprises contact magnet (10), hard spring (11), contact magnet (10) is connected with hard spring (11) interference, and contact magnet (10) polarity and built-in magnet (3) are corresponding one pendant polar identical, it is upper and be connected with anti-explosion electric cable (12) that hard spring (11) is fixed on seal casinghousing (1); Stationary contact mechanism comprises static contact (13) and contact (15), static contact (13) be positioned between contact magnet (10) and seal casinghousing (1) with contact magnet (10) opposite position, static contact (13) is fixed on seal casinghousing (1) and goes up and be connected with anti-explosion electric cable (14), contact (15) is welded on static contact (13), and anti-explosion electric cable (12,14) connects external circuit via clamp nut (16).
4. a kind of magnet flame-proof switch according to claim 3, is characterized in that: external switch magnet (2) is identical with contact magnet (10) opposite position magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685230.6U CN204927179U (en) | 2015-09-07 | 2015-09-07 | Magnet explosion -proof switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685230.6U CN204927179U (en) | 2015-09-07 | 2015-09-07 | Magnet explosion -proof switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204927179U true CN204927179U (en) | 2015-12-30 |
Family
ID=54976287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520685230.6U Expired - Fee Related CN204927179U (en) | 2015-09-07 | 2015-09-07 | Magnet explosion -proof switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204927179U (en) |
-
2015
- 2015-09-07 CN CN201520685230.6U patent/CN204927179U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200907 |