CN104362053A - Magnetic electricity over-load protection device - Google Patents
Magnetic electricity over-load protection device Download PDFInfo
- Publication number
- CN104362053A CN104362053A CN201410665254.5A CN201410665254A CN104362053A CN 104362053 A CN104362053 A CN 104362053A CN 201410665254 A CN201410665254 A CN 201410665254A CN 104362053 A CN104362053 A CN 104362053A
- Authority
- CN
- China
- Prior art keywords
- magnet
- circuit
- contact
- protection device
- spring
- 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
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a magnetic electricity over-load protection device. The magnetic electricity over-load protection device aims to overcome the defect that it is not safe to use a circuit under the condition that no electricity over-load protection device exists in the circuit. According to the magnetic electricity over-load protection device, a circuit can be opened automatically when an overload exists in the circuit, the situation that due to the fact the circuit is electrified for an excessively long time and a large amount of heat is generated, the circuit and an electric appliance are damaged can be prevented, and safety of the circuit and the electric appliance is guaranteed. According to the technical scheme of the magnetic electricity over-load protection device, a wire I is connected with a magnet I, a wire II is connected with a contact, the two ends of electro-insulating rubber are connected with the contact and a magnet II respectively, the other end of the magnet II is connected with a spring, the magnet I and the magnet II are placed in the mode that the identical electrodes of the magnet I and the magnet II are opposite to each other, and the magnet I is kept in contact with the contact.
Description
Art
The device protected circuit when exceeding rated load when the present invention relates to a kind of circuit working, especially one carrys out realizing circuit closed and disconnected by electromagnetic force, to the device that circuit is protected.
Background technology
At present, known circuit needs circuit automatically to disconnect when exceeding power load, prevents circuit from crossing electric overlong time, and a large amount of heating damages circuit and damages electrical appliance.Circuit uses circuit can be very dangerous when there is no overcurrent protection device.
Summary of the invention
The unsafe deficiency of circuit is used when not having overcurrent protection device in order to overcome circuit.The invention provides a kind of magnetic-type overcurrent protection device; this magnetic-type overcurrent protection device has the function that circuit disconnects automatically when circuit load is transshipped; can prevent circuit from crossing electric overlong time, a large amount of heating damages circuit and damages electrical appliance, the safety of protective circuit and electrical appliance.
The technical solution adopted for the present invention to solve the technical problems is: wire I is connected with magnet I, wire II is connected with contact, the two ends of electro-insulating rubber are connected with contact and magnet II respectively, the other end of magnet II is connected with spring, magnet I and magnet II homopolarity staggered relatively, magnet I and contact keep in touch state.The elastic force of spring is set to when matching with the rated load of circuit, just automatically can disconnects when crossing electricity condition and automatically closing with during non-over electricity condition by realizing circuit.Because the stronger magnetic force of electric current by magnet is stronger, the repulsive force that the magnet I that homopolarity is staggered relatively and magnet II produces is larger, magnetic-type overcurrent protection device is connected in circuit, circuit is in running order, when circuit exceedes rated load, magnet I is greater than the elastic force of spring to magnet II to the repulsive force that magnet II produces, magnet I overcomes the elastic force of spring to magnet II to the repulsive force that magnet II produces, cause spring contraction, spring drawing magnetism II, electro-insulating rubber moves together with contact, contact separates with magnet I, circuit disconnects automatically, when circuit does not exceed rated load, magnet I is less than the elastic force of spring to magnet II to the repulsive force that magnet II produces, magnet I can not overcome the elastic force of spring to magnet II to the repulsive force that magnet II produces, the elastic force of spring acts on magnet II, in the association of electro-insulating rubber and contact composition, make contact and magnet I for contact condition, circuit closes automatically, realizing circuit disconnects when crossing electricity condition and the object automatically closed during non-over electricity condition automatically.
The invention has the beneficial effects as follows, magnetic-type overcurrent protection device connects state in circuit, and when circuit is in electricity condition, circuit can disconnect automatically; when circuit is in non-over electricity condition, circuit can close automatically, and structure is simple; easy to manufacture, simple installation, easy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the cutaway view of one embodiment of the present of invention.
1. wire I, 2. magnet I, 3. contact, 4. electro-insulating rubber, 5. magnet II, 6. spring, 7. wire II in Fig. 1.
1. wire I, 2. magnet I, 3. contact, 4. electro-insulating rubber, 5. magnet II, 6. spring, 7. wire II, 8. support, 9. rubber blanket in Fig. 2.
In FIG, wire I (1) is connected with magnet I (2), wire II (7) is connected with contact (3), the two ends of electro-insulating rubber (4) are connected with contact (3) and magnet II (5) respectively, the other end of magnet II (5) is connected with spring (6), magnet I (2) and magnet II (5) homopolarity staggered relatively, magnet I (2) and contact (3) keep in touch state.The elastic force of spring (6) is set to when matching with the rated load of circuit, just automatically can disconnects when crossing electricity condition and automatically closing with during non-over electricity condition by realizing circuit.Because the stronger magnetic force of electric current by magnet is stronger, the repulsive force that the magnet I (2) that homopolarity is staggered relatively and magnet II (5) produces is larger, magnetic-type overcurrent protection device is connected in circuit, circuit is in running order, when circuit exceedes rated load, magnet I (2) is greater than spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, magnet I (2) overcomes spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, spring (6) is caused to shrink, spring (6) drawing magnetism II (5), electro-insulating rubber (4) and contact (3) move together, contact (3) separates with magnet I (2), circuit disconnects automatically, when circuit does not exceed rated load, magnet I (2) is less than spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, magnet I (2) can not overcome spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, the elastic force of spring (6) acts on magnet II (5), in the association that electro-insulating rubber (4) and contact (3) form, make contact (3) and magnet I (2) for contact condition, circuit closes automatically, realizing circuit disconnects when crossing electricity condition and the object automatically closed during non-over electricity condition automatically.
In the embodiment shown in Figure 2, wire I (1) is connected with magnet I (2), the two ends of rubber blanket (2) are connected with magnet I (2) and support (9) respectively, wire II (7) is connected with contact (3), the two ends of electro-insulating rubber (4) are connected with contact (3) and magnet II (5) respectively, the other end of magnet II (5) is connected with spring (6), spring (6) is connected with support (9), magnet I (2) and magnet II (5) homopolarity staggered relatively, magnet I (2) and contact (3) keep in touch state.The elastic force of spring (6) is set to when matching with the rated load of circuit, just automatically can disconnects when crossing electricity condition and automatically closing with during non-over electricity condition by realizing circuit.Because the stronger magnetic force of electric current by magnet is stronger, the repulsive force that the magnet I (2) that homopolarity is staggered relatively and magnet II (5) produces is larger, magnetic-type overcurrent protection device is connected in circuit, circuit is in running order, when circuit exceedes rated load, magnet I (2) is greater than spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, magnet I (2) overcomes spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, spring (6) is caused to shrink, spring (6) drawing magnetism II (5), electro-insulating rubber (4) and contact (3) move together, contact (3) separates with magnet I (2), circuit disconnects automatically, when circuit does not exceed rated load, magnet I (2) is less than spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, magnet I (2) can not overcome spring (6) to the elastic force of magnet II (5) to the repulsive force that magnet II (5) produces, the elastic force of spring (6) acts on magnet II (5), in the association that electro-insulating rubber (4) and contact (3) form, make contact (3) and magnet I (2) for contact condition, circuit closes automatically, realizing circuit disconnects when crossing electricity condition and the object automatically closed during non-over electricity condition automatically.
Claims (1)
1. a magnetic-type overcurrent protection device; it is characterized in that wire I is connected with magnet I; wire II is connected with contact; the two ends of electro-insulating rubber are connected with contact and magnet II respectively; the other end of magnet II is connected with spring; magnet I and magnet II homopolarity staggered relatively, magnet I and contact keep in touch state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665254.5A CN104362053A (en) | 2014-11-20 | 2014-11-20 | Magnetic electricity over-load protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665254.5A CN104362053A (en) | 2014-11-20 | 2014-11-20 | Magnetic electricity over-load protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104362053A true CN104362053A (en) | 2015-02-18 |
Family
ID=52529308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410665254.5A Pending CN104362053A (en) | 2014-11-20 | 2014-11-20 | Magnetic electricity over-load protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104362053A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038664U (en) * | 1988-10-29 | 1989-05-31 | 北京理工大学 | Automatic electric breaking switch |
| CN2103856U (en) * | 1991-08-29 | 1992-05-06 | 西安市未央区兴建五金电器厂 | Protector for limiting temp and current |
| CN2469548Y (en) * | 2001-03-16 | 2002-01-02 | 郭守恒 | High-speed current-limiting protector for resistance variety |
| US20080012665A1 (en) * | 2006-07-13 | 2008-01-17 | Deboer John | Design and method for keeping electrical contacts closed during short circuits |
| CN201708106U (en) * | 2010-05-07 | 2011-01-12 | 林志璁 | Concealed anti-theft device for circuits |
| DE102010035857A1 (en) * | 2010-06-25 | 2011-12-29 | Abb Ag | Magnet system for use in e.g. main circuit breaker in industrial application, has armature retained by permanent magnets and holding plate in starting position and after exceedance of preset short circuit current value to drive striker pin |
| WO2013139597A1 (en) * | 2012-03-21 | 2013-09-26 | Tyco Electronics Amp Gmbh | Line protection switch |
| CN203553067U (en) * | 2013-07-11 | 2014-04-16 | 河南永银化工实业有限公司 | Magnetic-force-boosted spring operating mechanism suitable for plastic housing air circuit breaker |
-
2014
- 2014-11-20 CN CN201410665254.5A patent/CN104362053A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038664U (en) * | 1988-10-29 | 1989-05-31 | 北京理工大学 | Automatic electric breaking switch |
| CN2103856U (en) * | 1991-08-29 | 1992-05-06 | 西安市未央区兴建五金电器厂 | Protector for limiting temp and current |
| CN2469548Y (en) * | 2001-03-16 | 2002-01-02 | 郭守恒 | High-speed current-limiting protector for resistance variety |
| US20080012665A1 (en) * | 2006-07-13 | 2008-01-17 | Deboer John | Design and method for keeping electrical contacts closed during short circuits |
| CN201708106U (en) * | 2010-05-07 | 2011-01-12 | 林志璁 | Concealed anti-theft device for circuits |
| DE102010035857A1 (en) * | 2010-06-25 | 2011-12-29 | Abb Ag | Magnet system for use in e.g. main circuit breaker in industrial application, has armature retained by permanent magnets and holding plate in starting position and after exceedance of preset short circuit current value to drive striker pin |
| WO2013139597A1 (en) * | 2012-03-21 | 2013-09-26 | Tyco Electronics Amp Gmbh | Line protection switch |
| CN203553067U (en) * | 2013-07-11 | 2014-04-16 | 河南永银化工实业有限公司 | Magnetic-force-boosted spring operating mechanism suitable for plastic housing air circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150218 |