CN205452225U - Fuse is used in motor protection - Google Patents
Fuse is used in motor protection Download PDFInfo
- Publication number
- CN205452225U CN205452225U CN201620120986.0U CN201620120986U CN205452225U CN 205452225 U CN205452225 U CN 205452225U CN 201620120986 U CN201620120986 U CN 201620120986U CN 205452225 U CN205452225 U CN 205452225U
- Authority
- CN
- China
- Prior art keywords
- arc
- conductive contact
- fuse
- fusion tube
- extinguishing medium
- 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 relates to a fuse of motor, transformer protection usefulness, the fuse -element, conductive contact board, arc -extinguishing medium and the arc -extinguishing medium capping that have narrow road and metallurgical effect point including fusion tube, centre, the fuse -element both sides welding of taking the narrow road is in conductive contact inboard side, and conductive contact board epitaxy is paintd and is passed the location fixed orifices of reserving after sealed the glue on fusion tube and the fusion tube, fixes with pin joint, then loads the arc -extinguishing medium in the fusion tube in the hole of loading of conductive contact board one side through reserving, and the hole shutoff will be loaded to reuse arc -extinguishing medium capping, just constitute the fuse finished product. Owing to combine closely in the epitaxy at the conductive contact board and the inboard of fusion tube to paintd sealed glue, high -tension arc disruptive conduction contact that fault current or when thunderbolt of just having controlled the fuse -link effectively produced can prevent because the damage of consumers such as motor that high -voltage breakdown arouses, transformer.
Description
Technical field:
This utility model relates to the fuse of a kind of motor, tranformer protection.
Background technology:
Protection device as various electronic electric equipments; fuse is the traditional devices of a kind of technology relative maturity; there is simple in construction; the advantages such as dependable performance; in all trades and professions, it is widely used in the protection of various equipment, develops various types of other fuse that special equipment concrete to various differences is protected.At present, if the dry tablet melt that common fuse generally individually includes fusion tube, be arranged in fusion tube and the binding post being arranged at fusion tube two ends, fill with quartz sand in fusion tube, it is machined with default narrow (narrow neck) on every melt, and is furnished with mounting seat according to the requirement of practical situation.When fault current is by melt; the narrow cervical region position that resistance is higher is heated rapidly by electrocaloric effect, and local temperature raises rapidly, and final melt fuses in narrow cervical region position; by thorough for fault current disjunction, thus other device in protection circuit does not suffers damage because of fault current.And it is specifically designed for the fuse in motor protection; then need to take into account the functions such as overload protection, short-circuit protection, delay protection; and the current conditions that motor is run under phase shortage; motor for star connection; after having a phase power-off, the electric current in other two phase windings increases to rated currentTimes；For the motor of delta connection, having the electric current in a phase winding to increase to 2 times of rated current after phase shortage, its line current also its line current also increases toTimes.Obviously,Motor rated current again; the only about half of the motor rated current of 3.4 times; after so burning because of phase shortage until motor; this biphase melt the most also will not fuse; therefore; there is certain deficiency in existing conventional fuse in terms of motor overload protection, and user affects normal work in order to avoid motor burns, and the mode of prioritizing selection short-circuit protection have to protect the electrical equipment such as motor, transformator.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art; the fuse of a kind of motor protection is provided; its operating chacteristics is stable; disjunction is swift in motion, and both can meet the needs of the electrical equipment short-circuit protections such as motor, it is also possible to meet the needs of overload protection and delay protection; make the protection to circuit and electrical equipment the most reliable; thering is provided most effective way in protection system of electric motor, the rated voltage of the highest applicable 600V, maximum current reaches the occasion of 600A.
For achieving the above object, this utility model provides following technical scheme:
1) a kind of motor, tranformer protection fuse; including fusion tube, melt, conductive contact plate, arc-extinguishing medium and arc-extinguishing medium capping; melt both sides are welded on inside conductive contact plate; conductive contact plate extension passes fusion tube after smearing fluid sealant; connect with location fixing hole pin reserved on fusion tube and be fixed up; then arc-extinguishing medium is filled in fusion tube by the charging aperture being reserved in conductive contact plate side, then with arc-extinguishing medium capping, charging aperture closure is got up and constitute fuse finished product.
2) space between fusion tube, melt, conductive contact is full of arc-extinguishing medium.
3) conductive contact plate surface is the most silver-plated.
4) centre of melt is provided with narrow neck and metallurgical effect point.
The beneficial effects of the utility model are:
1) it is full of arc-extinguishing medium due to the space between fusion tube, melt, conductive contact, when playing melt fusing while arc extinguishing, in the case of permanent load electric current, has good heat sinking function.
2) due to the most silver-plated on conductive contact plate surface, add melt electric conductivity on conductive contact plate, too increase fuse and join the electric conductivity of the supporter conduction contact knife answered therewith.
3) owing to have employed above technical scheme, the classical insulation that can set: the rated voltage of the highest 600V, maximum current reaches 600A.
This utility model for motor protection with fuse compared to existing technology, has the following characteristics that
1) mainly for electrical equipment designs such as motor, specificity is higher, and protective value is outstanding than fuse for general application；
2) owing to combining closely in the extension of conductive contact plate and the inner side of fusion tube, and smear fluid sealant, the high-voltage arc disruptive conduction contact produced when just having efficiently controlled fault current or the thunderbolt of fuse-link, is possible to prevent the damage of the electrical equipments such as the motor that causes due to high-voltage breakdown.
3) at the middle narrow road that is provided with of melt, and near narrow neck, metallurgical effect point it is provided with, it is possible to achieve short circuit, overload and the delay protection to electrical equipments such as motor.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram that this utility model is embodied as.
Fig. 2 is all design of part schematic diagrams that this utility model is embodied as.
Being the rated voltage of the highest a kind of 600V as shown in Figure 1-2, maximum current reaches the fuse of the motor protection of 600A, including melt 1, conductive contact plate 2, fusion tube 3, arc-extinguishing medium 4, arc-extinguishing medium capping 5 and fusion tube and conductive contact plate steady pin 6.
Detailed description of the invention
Specific embodiments the most of the present utility model is: the two ends with narrow road and the melt 1 of metallurgical effect point are fastened on inside the conductive contact plate 2 at two ends with welding manner respectively, the extension of the conductive contact plate 2 with melt 1 is coated with in advance and spreads fluid sealant, then by one end through fusion tube 3 inner chamber, with pin 6, conductive contact plate and fusion tube 2 connection are fixed up after checking alignment, then arc-extinguishing medium 4 is being filled in fusion tube 3 inner chamber by the arc-extinguishing medium charging aperture by being reserved on conductive contact plate 2 side, with arc-extinguishing medium capping 5, the closure of arc-extinguishing medium charging aperture is got up the most again, just fuse finished product is constituted.Owing to being filled with arc-extinguishing medium in fusion tube, when melt fuses, arc-extinguishing medium has effectively intercepted the impact of the high-voltage arc formed in fusion tube 3, and when preventing and control high electrical breakdown or melt fusing, arcing causes the damage of the electrical equipments such as motor.
Claims (4)
1. a motor protection fuse; including fusion tube, melt, conductive contact plate, arc-extinguishing medium and arc-extinguishing medium capping; it is characterized in that: melt both sides are welded on inside conductive contact plate; conductive contact plate extension passes fusion tube after smearing fluid sealant; connect with location fixing hole pin reserved on fusion tube and be fixed up; then arc-extinguishing medium is filled in fusion tube by the charging aperture being reserved in conductive contact plate side, then with arc-extinguishing medium capping, charging aperture closure is got up and constitute fuse finished product.
A kind of motor protection fuse the most according to claim 1, it is characterised in that: the space between fusion tube, melt, conductive contact is full of arc-extinguishing medium.
A kind of motor protection fuse the most according to claim 1, it is characterised in that: conductive contact plate surface is the most silver-plated.
A kind of motor protection fuse the most according to claim 1, it is characterised in that: the centre of melt is provided with narrow neck and metallurgical effect point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620120986.0U CN205452225U (en) | 2016-02-01 | 2016-02-01 | Fuse is used in motor protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620120986.0U CN205452225U (en) | 2016-02-01 | 2016-02-01 | Fuse is used in motor protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452225U true CN205452225U (en) | 2016-08-10 |
Family
ID=56581555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620120986.0U Expired - Fee Related CN205452225U (en) | 2016-02-01 | 2016-02-01 | Fuse is used in motor protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660627A (en) * | 2018-06-28 | 2020-01-07 | 赫森电气(无锡)有限公司 | Ultra-fast semiconductor protection fuse with direct-current voltage reaching 4000V |
| CN111613492A (en) * | 2020-05-28 | 2020-09-01 | 南京萨特科技发展有限公司 | Replaceable low-voltage fuse |
-
2016
- 2016-02-01 CN CN201620120986.0U patent/CN205452225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660627A (en) * | 2018-06-28 | 2020-01-07 | 赫森电气(无锡)有限公司 | Ultra-fast semiconductor protection fuse with direct-current voltage reaching 4000V |
| CN111613492A (en) * | 2020-05-28 | 2020-09-01 | 南京萨特科技发展有限公司 | Replaceable low-voltage fuse |
| CN111613492B (en) * | 2020-05-28 | 2022-09-09 | 南京萨特科技发展有限公司 | Replaceable low-voltage fuse |
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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: 20160810 Termination date: 20180201 |