CN205159260U - Fast acting fuse is used in electric motor car protection - Google Patents
Fast acting fuse is used in electric motor car protection Download PDFInfo
- Publication number
- CN205159260U CN205159260U CN201520664893.XU CN201520664893U CN205159260U CN 205159260 U CN205159260 U CN 205159260U CN 201520664893 U CN201520664893 U CN 201520664893U CN 205159260 U CN205159260 U CN 205159260U
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- fusion tube
- electric motor
- motor car
- melt
- fast acting
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Abstract
The utility model discloses a fast acting fuse is used in electric motor car protection, including fusion tube, fuse -element, left contact and right contact, two contacts are fixed respectively in the mouth of pipe at fusion tube both ends, the fuse -element encapsulates in the fusion tube and weld between two contacts, the fusion tube is filled with quartz sand, the fuse -element is the hard metal piece and buckle into the corrugate, six rows of through -holes have been seted up along its width direction to the fuse -element, and this utility model has the effectual characteristics of scattered arc.
Description
Technical field
The utility model relates to a kind of fuse, and more particularly, it relates to a kind of electric motor car protection fast acting fuse.
Background technology
Fuse refers to when electric current exceedes setting, with the heat that itself produces, melt is fused, a kind of electrical equipment of open circuit.Fuse is after exceeding setting a period of time according to electric current, makes Melt molten, thus circuit is disconnected with the heat that himself produces; Use a kind of current protector that this principle is made.Fuse is widely used in high and low voltage electric distribution system and control system and power consumption equipment, as the protector of short circuit and overcurrent, is apply one of the most general protection device.
At present, square porcelain tube generally used by filler fuse on market, in-built quartz sand and melt, although this fuse structure is simple, the arc weak effect because melt falls apart, be merely able to the voltage bearing below 400V grade, in addition, the fusion tube mass ratio that pottery is made is heavier, causes the overall weight of carrier to increase.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is the electric motor car protection fast acting fuse providing a kind of loose arc effective.
For achieving the above object, the utility model provides following technical scheme:
A kind of electric motor car protection fast acting fuse; comprise fusion tube, melt, left contact and right contact; two contacts are separately fixed in the mouth of pipe at fusion tube two ends; described melt to be packaged in fusion tube and to be welded between two contacts; quartz sand is filled with in described fusion tube; described melt is hard sheet metal and is bent into corrugated, and described melt offers two exhausting holes along its Width.
The utility model is set to further: described fusion tube is that epoxide resin material is made.
The utility model is set to further: described left contact is all fixedly connected with fusion tube by rivet with right contact.
The utility model is set to further: described left contact one end is cylindric formation potted ends, and the other end is that tabular forms contact jaw, and the gap between described potted ends and the inwall of fusion tube is 0.01mm ~ 0.5mm.
By adopting technique scheme, melt is bent into corrugated for being buried in quartz sand, quartz sand is enable to extinguish the electric arc shed from melt fast, four exhausting holes that melt is offered are for making melt loose arc fast, the electric pressure that can carry is higher, the melt strength that epoxy resin is made is high, and the fusion tube quality that pottery of comparing is made is light.
Accompanying drawing explanation
Fig. 1 is the stereogram of electric motor car protection fast acting fuse;
Fig. 2 is the vertical view of electric motor car protection fast acting fuse;
Fig. 3 be in Fig. 2 A-A cutaway view;
Fig. 4 is the connection layout of melt and two contacts in electric motor car protection fast acting fuse;
Fig. 5 is the stereogram of fusion tube in electric motor car protection fast acting fuse.
In figure: 1, fusion tube; 2, melt; 21, through hole; 3, left contact; 31, potted ends; 32, contact jaw; 4, right contact; 5, rivet; 6, quartz sand.
Embodiment
Referring to figs. 1 through Fig. 5, the utility model electric motor car protection fast acting fuse embodiment is described further.
A kind of electric motor car protection fast acting fuse; comprise the fusion tube 1 that melt 2, left contact 31, right contact 32 and epoxy resin are made; two contacts are separately fixed in the mouth of pipe at fusion tube 1 two ends; described melt 2 to be packaged in fusion tube 1 and to be welded between two contacts; quartz sand 6 is filled with in described fusion tube 1; described melt 2 is hard sheet metal and is bent into corrugated, and described melt 2 offers two exhausting holes 21 along its Width.Melt 2 is bent into corrugated for being buried in quartz sand 6, make quartz sand 6 can extinguish the electric arc shed from melt 2 fast, four exhausting holes 21 that melt 2 is offered are for making melt 2 loose arc fast, the electric pressure that can carry higher (500V), melt 2 intensity that epoxy resin is made is high, and fusion tube 1 quality that pottery of comparing is made is light, melt 2 is bent into corrugated, its body length is greater than the length of fusion tube 1, simultaneously, its corrugated has the effect of spring-like, can elongate and shrink, be convenient to the assembling of left contact 31 and right contact 32, and when left contact 31 and right contact 32 are placed in fusion tube 1, melt 2 is avoided to fold, reduce loose arc effect.
Described left contact 31 is all fixedly connected with fusion tube 1 by rivet 5 with right contact 32.For making fusion tube 1 be fixedly connected with right contact 32 with left contact 31, colleague, makes left contact 31 be sealed by two contacts of fusion tube 1 with right contact 32, prevents the quartz sand 6 in fusion tube 1 from flowing out.
Described left contact 31 one end is cylindric formation potted ends 31, the other end is that tabular forms contact jaw 32, right contact 32 is consistent with left contact 31 shape size, and the gap between described potted ends 31 and the inwall of fusion tube 1 is 0.02mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm.This gap can also prevent the quartz sand 6 in fusion tube 1 from flowing out while being convenient to assembling.
Melt 2 two ends were welded on the potted ends 31 of right contact 32 and the potted ends 31 of left contact 31 by installation step before this respectively; Passed in fusion tube 1 by left contact 31, its potted ends 31 is stayed in fusion tube 1; Fill in fusion tube 1 through chemical-treated glass sand 6, the potted ends 31 of right contact 32, by after filling up in fusion tube 1, is placed in fusion tube 1 by quartz sand 6; Adjust the position of right contact 32 fusion tube 1 relative to left contact 31, and by rivet 5, fusion tube 1 is fixedly connected with left contact 31 with right contact 32.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. an electric motor car protection fast acting fuse; comprise fusion tube, melt, left contact and right contact; two contacts are separately fixed in the mouth of pipe at fusion tube two ends; described melt to be packaged in fusion tube and to be welded between two contacts; quartz sand is filled with in described fusion tube; it is characterized in that: described melt is hard sheet metal and is bent into corrugated, described melt offers two exhausting holes along its Width.
2. electric motor car protection fast acting fuse according to claim 1, is characterized in that: described fusion tube is that epoxide resin material is made.
3. electric motor car protection fast acting fuse according to claim 2, is characterized in that: described left contact is all fixedly connected with fusion tube by rivet with right contact.
4. electric motor car protection fast acting fuse according to claim 3, is characterized in that: described left contact one end is cylindric formation potted ends, and the other end is that tabular forms contact jaw, and the gap between described potted ends and the inwall of fusion tube is 0.01mm ~ 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664893.XU CN205159260U (en) | 2015-08-31 | 2015-08-31 | Fast acting fuse is used in electric motor car protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664893.XU CN205159260U (en) | 2015-08-31 | 2015-08-31 | Fast acting fuse is used in electric motor car protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159260U true CN205159260U (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520664893.XU Active CN205159260U (en) | 2015-08-31 | 2015-08-31 | Fast acting fuse is used in electric motor car protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI822900B (en) * | 2018-11-07 | 2023-11-21 | 日商迪睿合股份有限公司 | Protection element |
-
2015
- 2015-08-31 CN CN201520664893.XU patent/CN205159260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI822900B (en) * | 2018-11-07 | 2023-11-21 | 日商迪睿合股份有限公司 | Protection element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |