CN209216907U - A kind of fuse with buffer interlayer - Google Patents
A kind of fuse with buffer interlayer Download PDFInfo
- Publication number
- CN209216907U CN209216907U CN201822222364.0U CN201822222364U CN209216907U CN 209216907 U CN209216907 U CN 209216907U CN 201822222364 U CN201822222364 U CN 201822222364U CN 209216907 U CN209216907 U CN 209216907U
- Authority
- CN
- China
- Prior art keywords
- melt
- insulating substrate
- fuse
- buffer interlayer
- insulation crust
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of fuses with buffer interlayer, including insulation crust, melt, insulating substrate and two tip electrodes, the melt, insulating substrate are all set in the inside of the insulation crust, the insulating substrate is covered on the outer surface of melt, described two tip electrodes are located at the outside both ends of insulation crust, and the both ends of melt are connect with two tip electrodes respectively.The fuse pastes insulating substrate by the surface in melt and forms buffer interlayer, and when melt disconnects under high current effect, explosive force caused by moment is applied on insulating substrate first, and blast pressure is absorbed by the fragmentation of insulating substrate, alleviates impact.Electrode is quickly cut off by insulating substrate fragment simultaneously and seems persistence drag arc, to improve breaking capacity.
Description
Technical field
The utility model relates to a kind of fuses, and in particular to a kind of high breaking performance fuse with buffer interlayer.
Background technique
Fuse is a kind of by melt and the device for supporting or the insulator of melt being protected to form, and is utilized lower melting-point
Wire or pellet electrode etc. is made as melt in metal material or slurry, is connected on by protection circuit, when circuit or circuit
In apparatus overload or when breaking down, melt due to fever by instantaneous fuse, to cut off circuit, reach protection circuit or set
Standby purpose.With the development that fuse is miniaturized, when the disjunction safety problem of melt is increasingly becoming high-voltage large current application
Emphasis factors in need of consideration.Fault current is excessive or the moment of short-circuit disconnection, the powerful electric arc of energy can be generated on melt,
If melt is nearby not provided with the material for extinguishing such electric arc, fuse will burn or even have the danger for generating and exploding, gently
Then burn the valuable element of other in circuit, it is heavy then fire can even occur because of arc ignition, jeopardize personal safety.
Melt is in breaking course in addition to generating a large amount of thermal energy, and can also be with the pressure for two kinds of forms occur: melt gasifies
The arcing pressure generated during the blast pressure of starting the arc moment generation impulse form and entire arcing.Conventional arc quenching material is general
It can occur physics and the chemistry such as to be pyrolyzed, melt, evaporate, distil and corrode by material itself under high-temperature heat flux effect
Variation causes quality consumption to take away heat on the surface of the material, so that reducing the thermal energy generated when melt disjunction influences.But due to
The presence of high temperature, the routine arc quenching material such as quartz sand, silica gel, thermosetting resin, glass coating is not often to blast pressure
Elastic buffer ability, the pyrolysis gas that arc-extinguishing unit generates but will cause the pressure rise inside arc-control device, thus be easy
Continue to cause the undesirable generation of fuse disjunction when arcing.
Utility model content
Purpose of utility model: in order to overcome the drawbacks of the prior art, the utility model discloses one kind to have buffer interlayer
Fuse, which can buffer blast pressure, improve the interrupting performance of fuse.
Technical solution: a kind of fuse with buffer interlayer described in the utility model, including insulation crust, melt,
Insulating substrate and two tip electrodes, the melt, insulating substrate are all set in the inside of the insulation crust, the insulation
Substrate is covered on the outer surface of melt, and described two tip electrodes are located at the outside both ends of insulation crust, the both ends of melt
It is connect respectively with two tip electrodes.
The utility model has the advantages that the fuse, which pastes insulating substrate by the surface in melt, forms buffer interlayer, when melt is big
When disconnecting under the function of current, explosive force caused by moment is applied on insulating substrate first, passes through the fragmentation of insulating substrate
To absorb blast pressure, alleviation impact.Electrode is quickly cut off by insulating substrate fragment simultaneously and seems persistence drag arc, to improve
Breaking capacity.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of fuse in the embodiments of the present invention one；
Fig. 2 is the schematic diagram of the section structure of fuse in the embodiments of the present invention three.
Specific embodiment
In the following, being described in further details in conjunction with attached drawing to the utility model.
As shown in Figure 1, present embodiment discloses a kind of fuse with buffer interlayer, including insulation crust 1, melt 2,
Insulating substrate 3, arc quenching material 4, solder 6 and two tip electrodes 5.Melt 2, insulating substrate 3 and arc quenching material 4 are all set in
The inside of insulation crust 1.Insulating substrate 3 is covered on the outer surface of melt 2, and arc quenching material 4 is filled in insulating substrate 3 and insulation is outer
Between shell 1.Two tip electrodes 5 are located at the outside both ends of insulation crust 1, and the both ends of melt 2 pass through solder 6 and two respectively
A tip electrodes 5 connect.
Wherein, insulation crust 1 and insulating substrate 3 are made using ceramic material, and the main component of the ceramic material is selected from oxygen
Change one of aluminium, magnesia, zirconium oxide, cordierite, mullite, sillimanite and spinelle.Melt 2 is fine silver or Kufil
Gold or the silver-plated material of copper.Arc quenching material 4 is with quartz sand, melamine resin powder, flame retardant of magnesium hydroxide, aluminium hydroxide resistance
Firing at least one of agent or fumed silica powder is that principal component passes through powder made of being granulated.
The cross section of melt 2 is circular filament or cross section is the laminated structure of rectangle or irregular figure.
When melt 2 is filament, the length of insulating substrate 3 is not less than the length of melt 2, and is not less than having when melt 2 fuses
Imitate length.When melt 2 is laminated structure, insulating substrate 3 is covered on the both side surface of melt 2, and the length of insulating substrate 3 is not less than
The length of melt 2, the width of insulating substrate 3 is not less than the width of melt 2, and the length of insulating substrate is molten not less than melt 2
Effective length when disconnected, the effective width when width of insulating substrate 3 fuses not less than melt 2.Specifically, insulating substrate 3
With a thickness of 0.15-0.6mm.
Further, high-temp glue 7 is also filled between melt 2 and insulating substrate 3.Melt 2 and insulating substrate 3 use high temperature
Glue 7 bonds, to reduce product thermal coefficient.High-temp glue 7 is polyimides (PI) glue, high-temperature silica gel, melamino-formaldehyde tree
At least one of rouge glue.
Specifically, providing the performance that three embodiments illustrate the fuse of the utility model.
Embodiment one: ceramic tube of the use having a size of 9.6*3.0*3.0 (mm, long * wide * are thick), 9.6*1.7*0.04 (mm,
Long * wide * is thick) the fine silver piece of size, the ceramic substrate of 8.0*1.7*0.3 (mm, long * wide * are thick) size, granularity is 100-150 mesh
Arc quenching material, assembling obtain the fuse with buffer interlayer such as Fig. 1 structure.It tests as a comparison, using identical size
Ceramic tube, fine silver piece, arc extinguishing powder etc., the fuse of no Buffer Interlayer Structure obtained using same process.
By the breaking capacity testing experiment to two groups of fuses under the conditions of DC300V100A and DC400V100A two,
It can be seen that the fuse without buffer interlayer can safely disconnect under the conditions of DC300V100A, but in DC400V100A condition
Under, can generate persistence drag arc, porcelain tube explosion the phenomenon that；Fuse with buffer interlayer is in DC300V100A and DC400V100A two
It can be safely disconnected under the conditions of a.
Embodiment two: using the ceramic tube having a size of 9.6*3.0*3.0 (mm), and diameter is the Kufil of 0.15mm size
Silk, the ceramic substrate of 8.0*0.5*0.3 (mm) size, granularity is the arc quenching material of 100-150 mesh, using being the same as example 1
Technique assemble to obtain the fuse with buffer interlayer such as Fig. 1 structure.
Through overtesting, which also can satisfy the requirement of DC400V100A breaking capacity.
Embodiment three: the ceramic tube having a size of 9.6*3.0*3.0 (mm), the fine silver of 9.6*1.7*0.04 (mm) size are used
Piece, the ceramic substrate of 8.0*1.7*0.3 (mm) size, granularity are the arc quenching material of 100-150 mesh, and ceramic base plate surface pastes one
Layer PI high-temp glue, then adhere on silver strip, and assemble and obtain the fuse with Buffer Interlayer Structure such as Fig. 2 structure.
Through overtesting, the breaking capacity of the fuse products can also meet the requirement of DC400V100A.
Claims (6)
1. a kind of fuse with buffer interlayer, which is characterized in that including insulation crust, melt, insulating substrate and two
Tip electrodes, the melt, insulating substrate are all set in the inside of the insulation crust, and the insulating substrate is covered on melt
Outer surface, described two tip electrodes are located at the outside both ends of insulation crust, the both ends of melt respectively with two end electricity
Pole connection.
2. the fuse according to claim 1 with buffer interlayer, which is characterized in that the melt and the insulation base
High-temp glue is also filled between plate.
3. the fuse according to claim 1 with buffer interlayer, which is characterized in that the inside of the insulation crust is also
It is provided with arc quenching material, the arc quenching material is filled between insulating substrate and insulation crust.
4. the fuse according to claim 1 with buffer interlayer, which is characterized in that the melt be filament or
Laminated structure.
5. the fuse according to claim 4 with buffer interlayer, which is characterized in that the melt is laminated structure
When, insulating substrate is covered on the both side surface of melt, and the length of insulating substrate is not less than the length of melt, the width of insulating substrate
Not less than the width of melt.
6. the fuse according to claim 1 with buffer interlayer, which is characterized in that the insulating substrate with a thickness of
0.15-0.6mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822222364.0U CN209216907U (en) | 2018-12-27 | 2018-12-27 | A kind of fuse with buffer interlayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822222364.0U CN209216907U (en) | 2018-12-27 | 2018-12-27 | A kind of fuse with buffer interlayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216907U true CN209216907U (en) | 2019-08-06 |
Family
ID=67466441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822222364.0U Active CN209216907U (en) | 2018-12-27 | 2018-12-27 | A kind of fuse with buffer interlayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209216907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620025A (en) * | 2019-09-21 | 2019-12-27 | 天宇匹克电子(惠州)有限公司 | Cylindrical alarm type low-pressure thermal fuse |
| CN112735930A (en) * | 2020-12-18 | 2021-04-30 | 中国振华集团云科电子有限公司 | Arc suppression material for improving breaking capacity of fuse and preparation method thereof |
-
2018
- 2018-12-27 CN CN201822222364.0U patent/CN209216907U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620025A (en) * | 2019-09-21 | 2019-12-27 | 天宇匹克电子(惠州)有限公司 | Cylindrical alarm type low-pressure thermal fuse |
| CN112735930A (en) * | 2020-12-18 | 2021-04-30 | 中国振华集团云科电子有限公司 | Arc suppression material for improving breaking capacity of fuse and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9837236B2 (en) | High-voltage direct-current thermal fuse | |
| WO2019085768A1 (en) | Miniature super surface mount fuse and manufacturing method thereof | |
| WO2006063503A1 (en) | Varistor with an alloy-type temperature fuse | |
| CN209216907U (en) | A kind of fuse with buffer interlayer | |
| CN103606497A (en) | Arc extinction slurry for fuse protector | |
| CN203406255U (en) | Surface mounting type alternating current high voltage fuse | |
| CN106531587B (en) | A kind of overcurrent protective device and its manufacturing method | |
| CN101079341B (en) | Non-combustible pressure-sensitive resistor | |
| CN109411311B (en) | Arc extinguishing slurry for fuse and preparation method thereof | |
| WO2013166788A1 (en) | Surface-mounted fuse | |
| CN201829441U (en) | Surface mount fuse | |
| CN206322662U (en) | A kind of overcurrent protective device | |
| CN100464378C (en) | A piezoresistor having arc-extinguishing and flame-proofing function | |
| CN207320046U (en) | A kind of microsuper surface mounting fuse protector | |
| CN208077929U (en) | A kind of organic type thermal cut-off of tool insulating protection | |
| CN105448618B (en) | A kind of high-tension fuse of graphene arc extinguishing and preparation method thereof | |
| CN111223731A (en) | Liquid metal self-recovery fuse | |
| CN210325678U (en) | High-voltage current-limiting fuse for transformer protection | |
| CN203787378U (en) | Over-current protector with voltage-releasing function | |
| CN220710234U (en) | Surface-mounted fuse | |
| CN218414471U (en) | Novel paster fuse | |
| CN208970471U (en) | A kind of high pressure resistant thermal fuse-link of alloy-type | |
| JP4156406B2 (en) | Thermo protector and method of operating thermo protector | |
| CN210007103U (en) | special tool for crimping bar-shaped suspension type voltage limiter | |
| TW200847193A (en) | A well-safe and nonflammable voltage-sensitive resistor and its fabrication method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |