CN206116331U - A direct current fast acting fuse for electric automobile - Google Patents
A direct current fast acting fuse for electric automobile Download PDFInfo
- Publication number
- CN206116331U CN206116331U CN201621168906.5U CN201621168906U CN206116331U CN 206116331 U CN206116331 U CN 206116331U CN 201621168906 U CN201621168906 U CN 201621168906U CN 206116331 U CN206116331 U CN 206116331U
- Authority
- CN
- China
- Prior art keywords
- contact knife
- hole
- sword
- fuse
- electric automobile
- 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 direct current fast acting fuse for electric automobile, this fuse include that it touches the sword under with to touch the sword, on touch the sword with under touch and be connected with a plurality of pure silver fuse -elemenies between the sword and touch the sword on, and touch the sword under and be fixed with the glass stringing in opposite directions between the terminal surface, be close to and has seted up first through -hole on the glass stringing terminal surface that touches the sword, have a net stopper with the cooperation of first through -hole is installed, set up the second through -hole on being close to the glass stringing terminal surface that touches the sword down, cooperated the copper plug that has who installs with the second through -hole, wherein, has still installed the indicator on being close to the glass stringing terminal surface that touches the sword, be connected with the constantan wire on the indicator, the constantan wire other end through second through -hole and copper plug's cooperation fix touch the sword under on, still include the quartz sand, the quartz sand injects the glass stringing through first through -hole, goes into silicon sodium acid aqueous solution in the glass stringing is annotated, this fast protection who has solved electric automobile direct current rechargeable battery, and have clear indication after the quick fusing of fuse, help timely detection.
Description
Technical field
This utility model is related to low voltage electrical apparatus technology field, more particularly to a kind of direct current quick fuse for electric automobile
Device.
Background technology
DC fuse is mainly partly made up of melt and fusion tube and outer filled grade.During use, fuse is connected
In by protection circuit, when setting is exceeded by the electric current of protection circuit, and after certain hour, produced by melt itself
Heat fusing melt, disconnects circuit, so as to play a part of protection.The electricity of disjunction circuit using metallic conductor as melt
Device, is series in circuit, and when overload or short circuit current pass through melt, melt itself will generate heat and fuse, so as to power train
System, various electrical equipments and household electrical appliance all serve certain protective effect.With inverse time delay characteristics, when overcurrent it is little
When, fusing time is long；When overcurrent is big, fusing time is short.Therefore, just recover to electric current in the range of certain overcurrent
Often, fuse will not fuse, and can be continuing with, and DC fuse is a kind of overcurrent protective device.
Domestic DC fast speed fuse used for electric vehicle is suffered from the drawback that at present：1. when fuse blows without obvious
Indicate；2. it is used mostly silver-bearing copper composite band and does melt, generates heat than more serious；3. current most domestic DC fast speed fuse comes
It is from foreign countries, not only expensive, and external product delivery cycle it is long the problems such as；
In order to solve the above problems, research staff have developed a kind of DC fast speed fuse for electric automobile.
The content of the invention
In order to solve the problems, such as above-mentioned prior art, the purpose of this utility model is to provide a kind of for electronic vapour
The DC fast speed fuse of car, the DC fast speed fuse can not only solve the quick guarantor of electric automobile DC charging battery
Shield, and when there is larger short circuit current, after fuse quick fuse, have substantially instruction, it is not necessary to increase extra instruction and melt
Disconnected device, so as to contribute to detection and reduces cost in time；Fine silver melt is adopted simultaneously, contributes to alleviating heating.
In order to achieve the above object, this utility model is employed the following technical solutions and is achieved.
A kind of DC fast speed fuse for electric automobile, it is characterised in that the fuse include contact knife and it is lower touch
Knife, is connected with multiple fine silver melts between the upper contact knife and the lower contact knife, solid between upper contact knife and the opposite end face of lower contact knife
Surely there is glass stringing, first through hole is offered on the glass cloth end surfaces of upper contact knife, coordinate having for installing with first through hole
Net plug；The second through hole is offered on the glass cloth end surfaces of lower contact knife, coordinates that what is installed to have copper plug with the second through hole；Its
In, indicator is also equiped with the glass cloth end surfaces of upper contact knife, constantan wire, the constantan wire other end are connected with indicator
It is fixed on lower contact knife by cooperation of second through hole with copper plug；Also include quartz sand, quartz sand is poured into by first through hole
Glass stringing, enters sodium silicate aqueous solution in glass stringing note.
The characteristics of this utility model and further improvement is that：
Annular is fixed between contact knife and the opposite end face of lower contact knife multiple fine silver melts at equal intervals.
The fine silver melt is fixed between upper contact knife and the opposite end face of lower contact knife by welding manner.
The fine silver melt is first-class is interval with multiple fractures for each.
The quartz sand pours into glass stringing by mode of vibration.
Compared with prior art, this utility model has significantly technique effect.
First, can solve the problem that the quick protection of electric automobile DC charging battery.
2nd, when there is larger short circuit current, there is substantially instruction after fuse quick fuse, and do not increase extra finger
Show fuse, so as to contribute to detection and reduces cost in time.
What the 3rd, new-energy automobile producer of the current country was used mostly is external import fuse, and which uses copper silver composite band
Do melt, generate heat than more serious, this utility model adopts fine silver melt, contributes to alleviating heating.
4th, this utility model employs curing process, and product breaking capacity is higher.
Description of the drawings
With reference to the accompanying drawings and detailed description this utility model is described in further detail.
Fig. 1 is that a kind of DC fast speed fuse for electric automobile of the present utility model is integrally intended to；
Right views of the Fig. 2 for Fig. 1.
In figure：The upper contact knifes of 1-；2- net plugs；3- fine silver melts；4- glass stringings；5- quartz sands；Contact knife under 6-；7- copper plugs；
8- constantan wires；9- indicators.
Specific embodiment
As depicted in figs. 1 and 2, a kind of DC fast speed fuse for electric automobile of the present utility model, the fuse
Including upper contact knife 1 and lower contact knife 6, multiple fine silver melts 3, multiple fine silver melts 3 etc. between upper contact knife 1 and lower contact knife 6, are connected with
Interval annular is welded between 6 opposite end face of contact knife 1 and lower contact knife, wherein, each fine silver melt 3 is first-class be interval with it is multiple
Fracture；Glass stringing 4 is fixed between 6 opposite end face of upper contact knife 1 and lower contact knife, on 4 end face of glass stringing of upper contact knife 1
First through hole is offered, coordinates with first through hole the net that has of installing to fill in 2；Offer on 4 end face of glass stringing of lower contact knife 6
Second through hole, coordinates that what is installed to have copper plug 7 with the second through hole；Wherein, also install on 4 end face of glass stringing of upper contact knife 1
There is indicator 9, in indicator 9, be connected with constantan wire 8, cooperation of 8 other end of constantan wire by the second through hole with copper plug 7 is fixed on
On lower contact knife 6；Also include quartz sand 5, quartz sand 5 pours into glass stringing 4 by first through hole mode of vibration, in glass stringing
Enter sodium silicate aqueous solution in 4 notes.
DC fast speed fuse operation principle for electric automobile of the present utility model is as follows：
By multiple fine silver melts 3 at equal intervals annular solder between 6 opposite end face of upper contact knife 1 and lower contact knife, wherein, often
It is equidistant on individual fine silver melt 3 to be provided with multiple fractures, then the upper contact knife 1 with melt and lower contact knife 6 are passed sequentially through special
Jacketing machine press-in glass stringing 4, it is ensured that upper contact knife 1 is concordant with glass stringing 4 with the end face of lower contact knife 6, near the glass of upper contact knife 1
Indicator 9 is equiped with 4 end face of glass stringing also, cooperation of 8 other end of copper wire by the second through hole with copper plug 7 is fixed on lower contact knife
On 6；Then special quartz sand is vibrated from the first through hole of upper contact knife and poured into, after waiting jolt ramming, filling sand hole is blocked with net plug 2, then
The sodium silicate aqueous solution prepared is injected with air pressure, unnecessary sodium silicate aqueous solution is extracted out by evacuation, be finally putting into baking oven baking
Till dry, so far DC fast speed fuse makes and finishes.
Although being described to embodiment of the present utility model above in association with accompanying drawing, this utility model not office
It is limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiment is only schematic, directiveness, and
It is not restricted.One of ordinary skill in the art under the enlightenment of description, without departing from this utility model claim
In the case of the scope protected, the form of many kinds can also be made, and these belong to the row of protection of the present utility model.
Claims (5)
1. a kind of DC fast speed fuse for electric automobile, it is characterised in that the fuse includes contact knife and lower contact knife,
Multiple fine silver melts are connected between the upper contact knife and the lower contact knife, are fixed between upper contact knife and the opposite end face of lower contact knife
Glass stringing, offers first through hole on the glass cloth end surfaces of upper contact knife, coordinates the net that has of installing to fill in first through hole；
The second through hole is offered on the glass cloth end surfaces of lower contact knife, coordinates that what is installed to have copper plug with the second through hole；Wherein, it is close
Indicator is also equiped with the glass cloth end surfaces of upper contact knife, constantan wire in indicator, is connected with, the constantan wire other end is by the
Two through holes are fixed on lower contact knife with the cooperation of copper plug；Also include quartz sand, quartz sand pours into glass cloth by first through hole
Pipe, enters sodium silicate aqueous solution in glass stringing note.
2. the DC fast speed fuse for electric automobile according to claim 1, it is characterised in that multiple fine silver
Annular is fixed between contact knife and the opposite end face of lower contact knife melt at equal intervals.
3. the DC fast speed fuse for electric automobile according to claim 1, it is characterised in that the fine silver melt
It is fixed between upper contact knife and the opposite end face of lower contact knife by welding manner.
4. the DC fast speed fuse for electric automobile according to claim 1, it is characterised in that each described fine silver
Melt is first-class to be interval with multiple fractures.
5. the DC fast speed fuse for electric automobile according to claim 1, it is characterised in that the quartz sand leads to
Cross mode of vibration and pour into glass stringing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168906.5U CN206116331U (en) | 2016-11-02 | 2016-11-02 | A direct current fast acting fuse for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168906.5U CN206116331U (en) | 2016-11-02 | 2016-11-02 | A direct current fast acting fuse for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116331U true CN206116331U (en) | 2017-04-19 |
Family
ID=58525159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621168906.5U Expired - Fee Related CN206116331U (en) | 2016-11-02 | 2016-11-02 | A direct current fast acting fuse for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206116331U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511300A (en) * | 2018-05-07 | 2018-09-07 | 西安三鑫熔断器有限公司 | A kind of high current fastp-acting fuse |
| CN110265275A (en) * | 2019-07-08 | 2019-09-20 | 广东中贝能源科技有限公司 | A kind of fuse new fill compositions |
| CN112951680A (en) * | 2021-02-25 | 2021-06-11 | 西安交通大学 | Structure for improving rated current capacity of vacuum fuse based on double-gap structure |
-
2016
- 2016-11-02 CN CN201621168906.5U patent/CN206116331U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511300A (en) * | 2018-05-07 | 2018-09-07 | 西安三鑫熔断器有限公司 | A kind of high current fastp-acting fuse |
| CN110265275A (en) * | 2019-07-08 | 2019-09-20 | 广东中贝能源科技有限公司 | A kind of fuse new fill compositions |
| CN112951680A (en) * | 2021-02-25 | 2021-06-11 | 西安交通大学 | Structure for improving rated current capacity of vacuum fuse based on double-gap structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20211102 |