CN207925424U - A kind of fuse for electric vehicle - Google Patents
A kind of fuse for electric vehicle Download PDFInfo
- Publication number
- CN207925424U CN207925424U CN201721565877.0U CN201721565877U CN207925424U CN 207925424 U CN207925424 U CN 207925424U CN 201721565877 U CN201721565877 U CN 201721565877U CN 207925424 U CN207925424 U CN 207925424U
- Authority
- CN
- China
- Prior art keywords
- fuse
- fusion tube
- link
- compound fusion
- fixed pin
- 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 discloses a kind of fuses for electric vehicle, including compound fusion tube, contact knife, fuse-link, fixed pin, quartz sand；Fuse-link is welded on the inner face of two contact knifes and is then encapsulated in compound fusion tube, the cured quartz sand of filling in compound fusion tube；Compound fusion tube is high-strength high temperature-resistant fire proofing, fireproofing and heat resistant antidetonation；Fuse-link is 99.99% ultra-thin pure silver belt, and low resistance low melting point, resistance to oxidation, fusing is rapidly；To rush integral process electric conductivity reliable using red for contact knife；Fixed pin is stainless steel salt spray proof, and head annular knurl is not easily to fall off.
Description
Technical field：
The utility model is related to new energy industries, are suitable for large and medium bus lithium battery group, inversion, speed governing and charging unit
Dc-side short-circuit is protected, and field of new energy technologies is belonged to.
Background technology：
Country's New-energy electric vehicle fuse has the following defects since structure design is unreasonable at present：One, fuse
Fusion tube is using ceramics or glass epoxide pipe, and ceramic tube is frangible, glass epoxide pipe non-refractory, and easy spontaneous combustion causes electric vehicle to rise
Fire threatens life life and property safety；Two, fuse-link uses copper material or copper silver composite material, both materials are all oxidizable,
Conductivity is high, fusing point is high, fusing time is long；Three, contact knife planar section is welded to together with flange section, and weldment is variable
Shape, the defects of there are abnormal sweating solder skips, temperature increases, junction is also easy to produce gap causes conductive bad and warm liter excessively high；Four, fixed pin
The normal service life of fuse is influenced using normal carbon galvanizing steel salt spray proof energy force difference.
Invention content：
The utility model provides a kind of fuse for electric vehicle for the disadvantage present in above-mentioned background technology, keeps it suitable
It is protected for large and medium bus lithium battery group, inversion, speed governing and charging unit dc-side short-circuit.
The purpose of this utility model is realized with following technical proposals：Including compound fusion tube (3), contact knife (1), fusing
Body (2), fixed pin (4) and quartz sand (5), it is characterised in that：Contact knife (1) both ends of the surface weld fuse-link (2) post package in compound
It is fixed with fixed pin (4) in fusion tube (3), inside filling quartz sand (5).
The compound fusion tube (3) of the fuse for electric vehicle is high-strength high temperature-resistant fire proofing.
The fuse-link (2) of the fuse for electric vehicle is 99.99% ultra-thin pure silver belt.
The contact knife (1) of the fuse for electric vehicle is using the integrated copper material structure of red punching.
The fixed pin (4) of the fuse for electric vehicle is stainless steel, both ends head annular knurl.
The beneficial effects of the present invention are：
The utility model and currently available technology compare, and compound fusion tube is high-strength high temperature-resistant fire proofing, fireproofing and heat resistant
Antidetonation prevents electric vehicle protection life life on fire and property safety；Fuse-link is 99.99% ultra-thin pure silver belt, and low resistance is low
Fusing point, resistance to oxidation, the circuit fusing time, lithium battery and current transformer were all the critical component of electric vehicle, current transformer in 10ms
The short circuit current of 10ms can only be resistant to the protection element IGBT of lithium battery, and fuse protects IGBT to burst energy really not damaging
Protect the safety of lithium battery and motor；Contact knife is using the integrated copper material structure of red punching, and electric conductivity is reliably and good appearance；It is fixed
Pin is stainless steel, both ends head annular knurl, salt spray proof and not easily to fall off.
Description of the drawings：
Fig. 1 is the schematic cross-sectional view of the utility model.
Wherein：Contact knife 1, fuse-link 2, compound fusion tube 3, fixed pin 4, quartz sand 5.
Specific implementation mode：
The present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, fuse for electric vehicle, including compound fusion tube, contact knife, fuse-link, fixed pin and quartz sand,
It is characterized in that：It is packaged in compound fusion tube using automation equipment after contact knife both ends of the surface welding fuse-link, it will with automation equipment
The fixed pin of both ends annular knurl squeezes into the junction of multiple tube and contact knife, and fill sand equipment using pressure is filled in fusion tube by quartz sand
It is interior.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation mode of the present invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from present inventive concept, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Claims (1)
1. a kind of fuse for electric vehicle, including compound fusion tube (3), contact knife (1), fuse-link (2), fixed pin (4) and quartz
Sand (5), it is characterised in that：Fuse-link (2) post package is welded in compound fusion tube (3) in two contact knifes (1) end face, with fixed pin (4)
It is fixed, inside filling quartz sand (5)；Compound fusion tube (3) is high-strength high temperature-resistant fire proofing；Fuse-link (2) is 99.99% to surpass
Thin pure silver belt；Contact knife (1) is using the integrated copper material structure of red punching；Fixed pin (4) is stainless steel, both ends head annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721565877.0U CN207925424U (en) | 2017-11-21 | 2017-11-21 | A kind of fuse for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721565877.0U CN207925424U (en) | 2017-11-21 | 2017-11-21 | A kind of fuse for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207925424U true CN207925424U (en) | 2018-09-28 |
Family
ID=63612029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721565877.0U Expired - Fee Related CN207925424U (en) | 2017-11-21 | 2017-11-21 | A kind of fuse for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207925424U (en) |
-
2017
- 2017-11-21 CN CN201721565877.0U patent/CN207925424U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20211121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |