CN2149014Y - Hand-operated resetting safe apparatus for electric equipment, circuit - Google Patents
Hand-operated resetting safe apparatus for electric equipment, circuit Download PDFInfo
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- CN2149014Y CN2149014Y CN 93201058 CN93201058U CN2149014Y CN 2149014 Y CN2149014 Y CN 2149014Y CN 93201058 CN93201058 CN 93201058 CN 93201058 U CN93201058 U CN 93201058U CN 2149014 Y CN2149014 Y CN 2149014Y
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- magnetic
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Abstract
The utility model relates to a hand-operated resetting safe apparatus for electric equipment and circuits. One end of a magnetic and elastic strip with the curie temperature of 60-600 DEG C, particularly 150-250 DEG C, is fixed to the fixed point of the apparatus, and the other end of the magnetic elastic strip is provided with a movable contact. The movable contact is contacted with the static contact of the apparatus, and a permanent magnet is arranged under the magnetic and elastic strip. The movable contact is made of metallic materials, such as heating wires having a high-melting point, the contact surface of the static contact is made of metallic tin, and vice versa. The utility model has simple structure, easy fabrication, high sensitivity and low cost and can be used for protecting all electric equipment and circuits.
Description
The utility model is a kind of electrical equipment, circuit safeties.
At present, circuit, electrical equipment safeties kind are a lot, but the major defect of its existence has (1) volume big, complex circuit and manufacturing process complexity, poor sensitivity, cost height.What (2) have only can disposablely insure, and can only be applied on a certain electrical equipment.As the bimetal leaf safeties, complex manufacturing, the cost height is applied in when breaking down on the electrical equipment, and the time that the bimetal leaf contact leaves is slow, and the electric arc of generation is big, and melting welding appears in contact sometimes, more can not play the short circuit safety effect.For another example, the Fuse Type fuse can only play safety effect one time, during blowout, will change.
The purpose of this utility model is exactly a kind of safeties that design at the above-mentioned background technology.These safeties are simple in structure, easy to manufacture, volume is little, cost is low, highly sensitive; Can play the safety effect of faults such as excess load, superpressure, short circuit many times; And wide application on all electrical equipment or on the circuit plug special, can both use on the socket.
The principle of the utility model foundation and the technical scheme of being taked are:
1, principle: selected some magnetic materials for use, its Curie temperature is at 60～600 ℃, be preferably between 150～250 ℃, this material has a small amount of resistance, and electric current is by this magnetic material, when not overloading as electric current, the temperature of this magnetic material can not surpass the magnetic that the Curie point magnetic material should keep it to have, during the ifs circuit excess load, reach Curie point at once because of the resistance of magnetic material itself makes it to heat up, magnetic disappears.
2, technical scheme: at 60～600 ℃, an end that is preferably in the magnetic elasticity silver between 150～250 ℃ is fixed on the fixing point of insurance dress with Curie temperature, and the other end of magnetic elasticity silver is a movable contact.This moving contact contacts with the fixed contact of safeties; Moving contact and fixed contact are to differ greatly and the metal that mutually do not weld character is made respectively with two kinds of melting ranges, and moving moving contact is made with the higher metal of fusing point, and fixed contact is then made with the very low metal of fusing point; Make with the lower metal of fusing point as moving contact, then fixed contact is made with the very high metal of fusing point so that under high-temperature two contacts not because of the fusion adhesion.
Refractory metal can adopt the electric furnace heating wire material, and low-melting-point metal can adopt tin metal to do the contact-making surface of contact.
In magnetic elasticity silver underneath a permanent magnet is arranged, when the temperature of magnetic elasticity silver does not surpass its Curie temperature, magnetic elasticity silver is adsorbed by permanent magnet, the moving contact of magnetic elasticity silver is contacted with the fixed contact of safeties, circuit turn-on, when the temperature of magnetic elasticity silver surpasses its Curie temperature, the magnetic silver loses magnetism, and leaves permanent magnet by the elastic force that itself has, and moving contact and fixed contact are disconnected, circuit disconnects, occupy temperature when following when magnetic elasticity silver temperature is reduced to it, recover its magnetic, hand is adsorbed by permanent magnet again by magnetic elasticity silver, moving contact contacts with fixed contact, circuit turn-on.
The utility model is compared the beneficial effect that has with background technology: (1) is simple in structure, easy to manufacture, volume is little, cost is low, highly sensitive.(2) can play the safety effect of faults such as excess load, superpressure, short circuit many times.(3) wide application.On the plug special that replaces fuse or all electrical equipment and electrical equipment on the electrical equipment of all electricity consumptions, socket, all can use.
Fig. 1 is a schematic diagram of the present utility model;
Fig. 2 is a structure chart of the present utility model.
Be that embodiment is described in further detail principle of the present utility model and structure below with the accompanying drawing:
As shown in Figure 1, 2, an end of magnetic elasticity silver 1 is fixed on the fixing point 6 of device, and the other end of magnetic elasticity silver 1 has a moving contact 3 to contact with device upper static contact 4.A permanent magnet 2 is arranged below magnetic elasticity silver 1, when temperature does not surpass the Curie temperature of magnetic elasticity silver 1, magnetic elasticity silver 1 is adsorbed by permanent magnet 2, circuit is logical, and when temperature surpassed the Curie temperature of magnetic elasticity silver 1, magnetic elasticity silver 1 lost magnetism, by the elastic force of self, leave permanent magnetism 2, moving contact 3 and fixed contact 4 leave, and circuit disconnects.Magnetic elasticity silver 1 leaves after the permanent magnet 2, and himself temperature reduces, and occupies temperature when following when being reduced to, and recovers magnetic, and hand-reset is adsorbed by permanent magnet 2 again, and moving contact 3 contacts with fixed contact 4, circuit 2 conductings.Fixing point 7 and fixed contact 4 are installed on the housing 7 of device.
When the moving contact 3 of magnetic elasticity silver one end was made for the electric furnace heating wire material, then the face that touches of fixed contact 4 was that tin metal is made; The face that touches of moving contact 3 is a tin metal when making, and then fixed contact 4 is made for the electric furnace heating wire material.One end of electrical equipment 5 is connected on the fixing point 6 of device.
Claims (4)
1, a kind of hand-reset formula electrical equipment, circuit safeties, it is characterized in that: an end of magnetic elasticity silver (1) is fixed on the fixing point (6) of device, the other end has a moving contact (3), this moving contact (3) contacts with the fixed contact (4) of device, and a permanent magnet (2) is arranged below magnetic elasticity silver (1); The Curie temperature of magnetic elasticity silver (1) is between 60～600 ℃.
2, device as claimed in claim 1 is characterized in that: moving contact (3) is made for the electric furnace heating wire material, and the face that touches of fixed contact (4) is that tin metal is made.
3, must ask 1 described device as power, it is characterized in that: the face that touches of moving contact (3) is that metallic tin is made, and fixed contact (4) is made for the electric furnace heating wire material.
4, safeties as claimed in claim 1 is characterized in that: the Curie temperature of described magnetic elasticity silver is preferably between 150～250 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93201058 CN2149014Y (en) | 1993-01-01 | 1993-01-01 | Hand-operated resetting safe apparatus for electric equipment, circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93201058 CN2149014Y (en) | 1993-01-01 | 1993-01-01 | Hand-operated resetting safe apparatus for electric equipment, circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2149014Y true CN2149014Y (en) | 1993-12-08 |
Family
ID=33785659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93201058 Expired - Fee Related CN2149014Y (en) | 1993-01-01 | 1993-01-01 | Hand-operated resetting safe apparatus for electric equipment, circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2149014Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149185A (en) * | 2017-07-28 | 2020-05-12 | 尹楚尔Ip有限责任公司 | Improved switch |
| CN114373653A (en) * | 2022-03-15 | 2022-04-19 | 深圳市精视智造科技有限公司 | Expansion fuse |
-
1993
- 1993-01-01 CN CN 93201058 patent/CN2149014Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149185A (en) * | 2017-07-28 | 2020-05-12 | 尹楚尔Ip有限责任公司 | Improved switch |
| CN111149185B (en) * | 2017-07-28 | 2022-03-25 | 尹楚尔Ip有限责任公司 | Improved switch |
| CN114373653A (en) * | 2022-03-15 | 2022-04-19 | 深圳市精视智造科技有限公司 | Expansion fuse |
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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 |