CN205920946U - Fuse of built -in buffer layer - Google Patents
Fuse of built -in buffer layer Download PDFInfo
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- CN205920946U CN205920946U CN201621004805.4U CN201621004805U CN205920946U CN 205920946 U CN205920946 U CN 205920946U CN 201621004805 U CN201621004805 U CN 201621004805U CN 205920946 U CN205920946 U CN 205920946U
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- fuse
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- cushion
- arc extinguishing
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Abstract
The utility model relates to a fuse of built -in buffer layer, it includes insulating body, forms at least one fuse -link and formation in the insulating body are in the insulating body both ends and with the termination electrode that the fuse -link is connected, it is still including forming just be located in the insulating body fuse -link at least one arc extinguishing layer and formation all around is in the arc extinguishing layer global or fuse -link at least one global buffer layer, the buffer layer is for the accommodation space or have porous structure. Having overcome the fuse -link and having mismatched or the interdiffuse shrinking in binder removal sintering process with the buffer layer, avoided resulting in the fuse -link to take place phenomenons such as deformations, bending, defect, the resistance of having guaranteed the fuse -link distributes and concentrates, and it is good that the fuse -link fuses linear degree, the non -linear phenomena can not appear fusing, and the while can also guarantee that line work is normal.
Description
Technical field
This utility model belongs to electric fuse field, is related to a kind of fuse and in particular to a kind of fusing of built-in cushion
Device.
Background technology
With scientific and technical development, electric power/electronic product increasingly variation, complication, the circuit protection unit being applied
The non-simple glass tube fuse in the past of part, but have evolved into a new electronic component field of a great variety.
Fuse as a kind of frivolous little new-type element it is adaptable to compact conformation, the protection electricity of the small each electronic product of volume
Lu Zhong, its application is boundless.
With the rising of voltage in circuit, fuse is subject to incessantly voltage rising in fusing process and occurs that matrix breaks
Broken, fragmentation, burn plate and matrix flies away from the potential safety hazards such as circuit board it is therefore desirable to improve the voltage endurance capability of fuse.Application number
Chinese invention for 201010122121.5 adopts embedded type circuit lamination mode, is provided with least one between two stacking substrates
Individual pressure release heat build-up space, fuse-link is arranged in pressure release heat build-up space, and fuse-link can be assembled in electricity in this pressure release heat build-up space
Circulate out-of-date produced high temperature, and can let out except fuse-link fusing when produced pressure；But the shortcoming of this mode exists
It is arranged in pressure release heat build-up space in fuse-link, be at least simultaneously in groove and in patent and mention this protection element and can carry out
Sintering, and sintering process is fuse-link and ceramic substrate contraction densification process, because fuse-link at least one side is in groove knot
In structure, lead to it cannot shrink together with matrix, be easily caused fuse-link and flexural deformation phenomenon occurs, simultaneously because gravity factor
Fuse-link also occurs that, towards groove surface flexural deformation phenomenon, the flexural deformation of fuse-link can lead to the concordance of the fusing of fuse
Can be deteriorated, and easy appearance non-linear fusing impact circuit normal work.
The Chinese invention of Application No. 201210277104.8, using setting stamped grooves on the ceramic substrate of element, rushes
It is filled with porous ceramicss slurry or the pore creating material slurry of ltcc, in the porous ceramicss slurry being filled with ltcc or pore-creating in pressure groove
Stack melt layers on the ceramic substrate of agent slurry are so that melt is located at porous ceramicss slurry or the pore creating material slurry being filled with ltcc
Stamped grooves surface, another ceramic substrate is stacked on the ceramic substrate have melt layer again, two ceramic substrates
Stamped grooves part is located at same vertical plane, makes described melt layer be located at porous ceramicss slurry or the pore creating material being filled with ltcc
Between the stamped grooves part of slurry, can disperse the high pressure hot-fluid producing during fuse-link action that the impact of product itself is made
With, this by the way of dry-press process the later stage need by pressurize two ceramic substrates are forced together, this pressurizeed
The phenomenon so that melt deforms that journey can lead to pore-creating slurry and melt is squeezed, simultaneously this scheme introduce porous ceramicss or
Organic substance is discharged by pore creating material by low temperature co-fired, thus forming loose structure, the presence of these holes can lead to fuse-link to exist
It is diffused in sintering process among above-mentioned hole, causes fuse-link that defect occurs in itself, thus the resistance affecting fuse-link becomes big
The concordance increasing power consumption and fusing in circuit is deteriorated, and abnormal fusing thus affecting circuit normal work.
Can lead to fuse with the introducing in heat build-up space and hole, hole and electric arc layer because above-mentioned patent all has pressure release
Body this occur bending and deformation in forming process and low temperature co-fired process due to shrink mismatch (scope of freedom in hole shrink and
The different contractions of the upper and lower bi-material of electrode) bending, deformation and defect occur, thus affect the most basic resistance of fuse-link,
Fusing performance and safe breaking capacity, lead to fuse-link resistance discrete, and under overload situations, non-linear fusing phenomenon in fuse-link,
During short circuit fuse cannot safe disjunction, occur blowing up, burst, side spray or the phenomenon burning the harm line security such as plate.
Content of the invention
This utility model purpose is to overcome the deficiencies in the prior art to provide a kind of fuse of built-in cushion.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of fuse of built-in cushion, and it wraps
Include insulating body, at least one fuse-link being formed in described insulating body and be formed at described insulating body both ends and
The termination electrode being connected with described fuse-link, it also includes being formed in described insulating body and being located at described fuse-link surrounding
At least one arc extinguishing layer and at least one cushion being formed at described arc extinguishing layer side face or/and described fuse-link side face.
Optimally, described cushion is accommodation space or has loose structure.
Optimally, the quantity of described arc extinguishing layer is consistent with the quantity of described fuse-link, and it is arbitrary that it is formed at described fuse-link
On surface.
Further, described arc extinguishing layer is located between described cushion and described fuse-link.
Optimally, the thickness of described arc extinguishing layer is 0.5 ~ 20mil, more preferably 1 ~ 10mil.
Optimally, the thickness of described cushion is 1mil ~ 15mil, more preferably 3 ~ 10mil.
Because technique scheme is used, this utility model compared with prior art has the advantage that
(1) so ensure that planarization, concordance and the integrity of fuse-link, overcome fuse-link and existing with cushion
Shrink in dumping sintering process and mismatch or diffuse into one another, it is to avoid lead to fuse-link to deform, bend, the phenomenon such as defect, really
The resistance distribution having protected fuse-link is concentrated, and the fuse-link fusing linearity is good, is not in fusing non-linear phenomena, simultaneously acceptable
Guarantee that line work is normal；
(2) pressure release and two advantages of arc extinguishing are combined, overcoming midget fuse cannot high voltage withstanding especially short circuit
When strong electric discharge arcing phenomena occurs and occurs blowing up, bursts, burning plate etc. and affect the lacking of abnormal phenomena of circuit safety performance
Point, can make the proof voltage ability of existing fuse be significantly improved, simultaneously lifting fuse products energy density it is ensured that its
Being capable of safe disjunction when short circuit exception in circuit；
(3) may insure that fuse-link fuses position positioned at cushion and arc extinguishing layer overlay area under overcurrent situations, gram
Take fuse blows position do not occur blowing up, burst, burn when cushion and the arc extinguishing layer area of coverage lead to fuse blows
The shortcoming of the abnormal phenomenas such as plate, makes the proof voltage ability of fuse and safe breaking capacity get a promotion, the safety of fusing obtains
To guarantee.
Brief description
Accompanying drawing 1 is the top view of the fuse of the built-in cushion of this utility model；
Accompanying drawing 2 is the b-b sectional view of accompanying drawing 1；
Accompanying drawing 3 is the sectional view of accompanying drawing 1: the first form of (a) fuse-link, the second form of (b) fuse-link, (c)
The third form of fuse-link；
Accompanying drawing 4 is the first a-a sectional view of accompanying drawing 1；
Accompanying drawing 5 is the second a-a sectional view of accompanying drawing 1；
Accompanying drawing 6 is the third a-a sectional view of accompanying drawing 1；
Accompanying drawing 7 is the 4th kind of a-a sectional view of accompanying drawing 1；
Accompanying drawing 8 is the 5th kind of a-a sectional view of accompanying drawing 1；
Accompanying drawing 9 is the 6th kind of a-a sectional view of accompanying drawing 1；
Accompanying drawing 10 is the 7th kind of a-a sectional view of accompanying drawing 1；
Accompanying drawing 11 is the 8th kind of a-a sectional view of accompanying drawing 1.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model preferred embodiment is described in detail:
Embodiment 1
The fuse of built-in cushion as shown in Figures 1 to 4, main include insulating body 1, termination electrode 2, cushion 3,
Fuse-link 4 and arc extinguishing layer 5.
Fuse-link 4 is formed in insulating body 1, quantity at least one；Can be set to according to the actual needs
The thickness of corresponding specification；Its shape can be rectilinear or bending, and guarantees in cushion 3 and to go out in its fusing position
The region that segment 5 covers, to reach the effect of pressure release and arc extinguishing.Fusing position can be narrow, the shape such as prefabricated hole or groove
Shape, as long as be able to ensure that fuse-link 4 can effectively fuse under high voltage overcurrent condition；Fusing as shown in Fig. 3 (a)
Body 4 has the shape of " the big centre in two is little ", narrows the width making the width at both ends be more than middle part in the middle part of fuse-link 4,
The region of fusing is generally in the middle part of it；Basically identical in fuse-link structure as shown in Figure 3 (b) and Fig. 3 (a), different
It is: its middle part is formed with hole or groove；Fuse-link as shown in Figure 3 (c) is in integrally the structure of bending, and shape in the middle
Become to have hole or groove.
Termination electrode 2 has two, and they are formed at the both ends of insulating body 1, and are connected with the two ends of fuse-link 4,
For forming path with external circuit.Arc extinguishing layer 5 is also formed in insulating body 1, quantity at least one；It can form
Two surfaces up and down of fuse-link 4 are in same plane with fuse-link 4 and are located at its both sides and make it is also possible to be formed at
Obtain arc extinguishing layer 5 and contact (arbitrary place that i.e. arc extinguishing layer 5 is formed at fuse-link 4 surrounding) with fuse-link 4；In the present embodiment, go out
The quantity of segment 5 is consistent with the quantity of fuse-link 4, and they are correspondingly formed respectively at the upper surface of fuse-link 4.Cushion 3 is same
Sample is formed in insulating body 1, quantity at least one；Its thickness is 1mil ~ 15mil, preferably 3 ~ 10mil, and cushion 3 is thick
Spend and thin can lead to during product fusing pressure release space not it is impossible to let out except all energy when product fuses；Cushion 3 thickness mistake
Thickness can lead to the matrix strength of product to reduce；Its material can select carbon black, graphite, ultraviolet light cured adhesives, solvent-borne type
In binding agent, micropowder silica gel, aerosol silicon oxide, aluminium oxide, zirconium oxide, diboron trioxide, silicon oxide, zinc oxide and Barium monoxide
The mixture of one or more composition；It is formed on the side face of arc extinguishing layer 5 or/and on the side face of fuse-link 4；For airtight appearance
Between being empty or there is the airtight accommodation space of loose structure (it is to be noted that cushion 3 can be such as arc, square
Deng variously-shaped, as long as meeting corresponding function)；In the present embodiment, cushion 3 is formed at the upper table of arc extinguishing layer 5
Arc extinguishing layer 5 is made to be located between cushion 3 and fuse-link 4 at face.In the present embodiment, cushion 3, fuse-link 4 and arc extinguishing layer 5
All there are two, thus forming the fuse with double fuse-links 4, the performance of fuse can be improved.The fuse of said structure
Overcome fuse-link 4 to shrink the problem mismatching or diffusing into one another in dumping, sintering process and lead to fuse-link 4 to become
, it is ensured that the resistance distribution of fuse-link 4 is concentrated, the fuse-link fusing linearity is good, will not for the shortcoming of the phenomenons such as shape, bending, defect
Fusing non-linear phenomena occurs, simultaneously it may also be ensured that line work is normal；In conjunction with pressure release and two advantages of arc extinguishing, overcome little
Cannot strong electric discharge arcing phenomena and occur blowing up, burst, burn during high voltage withstanding especially short circuit in type fuse
Plate etc. affects the shortcoming of the abnormal phenomena of circuit safety performance, and the proof voltage ability of existing fuse can be made significantly to be carried
Rise, lifting fuse products energy density is it is ensured that it being capable of safe disjunction when short circuit exception in circuit simultaneously；May insure
Fuse-link 4 fuses position positioned at cushion 3 and arc extinguishing layer 5 overlay area under overcurrent situations, overcomes fuse blows position
Put and do not occur blowing up, burst, burn the abnormal phenomenas such as plate when cushion 3 and arc extinguishing layer 5 area of coverage lead to fuse blows
Shortcoming, makes the proof voltage ability of fuse and safe breaking capacity get a promotion, the safety of fusing is guaranteed；Using buffering
Layer 3 design improves the heat-insulating property of glass ceramics housing, can effectively reduce the resistance of fuse thus reaching minimizing circuit
The effect of power consumption saves energy, can lift fuse i2t ability, can lift the ability of the anti-high impulse of fuse, improve length
Termination scolding tin melting and the safety problem burning plate during time low overload.
The preparation method of the fuse of above-mentioned built-in cushion, it comprises the following steps:
A ceramic size is formed ceramic bases by way of conventional coating or curtain coating on molding support plate by (), subsequently lead to
Cross uv photocuring or be heating and curing to solidify ceramic bases；
(b) using conventional screen printing mode by fuse-link slurry according to silk screen graphic printing in ceramic bases,
By uv photocuring or the mode that is heating and curing by fuse-link slurry curing；
C () passes through printing or coating or one layer of arc extinguishing layer slurry of curtain coating on the fusing slurry of solidification, by uv photocuring
Or be heating and curing arc extinguishing layer slurry curing；Above arc extinguishing layer, cushion slurry is printed onto by solidification by screen printing mode
Arc extinguishing layer arc extinguishing layer slurry above, by uv photocuring or the mode that is heating and curing by cushion slurry curing,
D () passes through coating again on cushion slurry or curtain coating ceramic size forms ceramic matrix, by uv photocuring or
It is heating and curing and ceramic matrix is solidified；
E () as needed, repeat step (b) is to step (d) one or many；In the present embodiment, cushion 3, fusing
Body 4 and arc extinguishing layer 5 all have two, are therefore repeated once；
F () is to the single product obtaining (if the product of step (e) is single product directly carries out dumping；If step
E the product of () is the product matrix imposite being made up of multiple products, then need it is carried out cutting-peeling off to obtain single product
Product) carry out dumping and (Organic substance in ceramic matrix in product, fuse-link is passed through high-temperature oxydation with co2And h2The mode of o is excluded；
Organic substance in cushion in product, carbon black, graphite etc. are passed through high-temperature oxydation with co2And h2The mode of o is excluded, and forms one
The accommodation space of closing or the accommodation space with loose structure of a closing), then make ceramic matrix, melt by low temperature co-fired
Disconnected body and the cushion product forming densification sintered together；
G product after sintering is led by () by inside and outside can be used for outside chamfering, upper end, silver ink firing, electroplating technology formation product
Fuse (above-mentioned existing common process) that is logical and being used for welding.
Above-mentioned preparation method adopts wet moulding mode, using uv light or the every layer of ceramic bases that are heating and curing, fuse-link,
Cushion and arc extinguishing layer, without external force extrusion forming it is ensured that the phenomenon such as fuse-link, cushion and arc extinguishing layer do not deform upon, really
Protect this structure design complete it is ensured that product arc extinguishing under high voltages and pressure performance especially circuit occur short circuit abnormal when
Safe breaking capacity, does not cause the potential safety hazard of circuit, ensures that fuse does not occur abnormal fusing just not affecting circuit simultaneously again
Often work.In the present embodiment, cushion slurry can select the base materials such as ultraviolet light cured adhesives, solvent based adhesive, also
Can select to be mixed with carbon black, graphite, micropowder silica gel, aerosol silicon oxide, aluminium oxide, zirconium oxide, diboron trioxide, silicon oxide,
One or more of zinc oxide, Barium monoxide etc..The effect of arc extinguishing layer 5 is to be stained with overcurrent in circuit under the condition of high voltage that goes out
Or short circuit abnormal when fuse blows when the spill over phenomenon that occurred due to voltage effect, the thickness of arc extinguishing layer is 0.5 ~
20mil, more excellent thickness is 1mil ~ 10mil, and arc extinguishing thickness is spent thin meeting and fuse-link cannot be completely covered, and thickness is blocked up to lead
The energy causing fusing process is not enough to break through arc extinguishing layer and reaches cushion thus cushion cannot be made to play the purpose of pressure release；Its material
Material can be with one of selective oxidation aluminum, zirconium oxide, diboron trioxide, silicon oxide, zinc oxide, Barium monoxide, glass ceramics or many
The mixture planted；Can also be consistent with insulating matrix material, so may insure that fuse-link top and bottom when low temperature co-fired are shunk
Concordance.And the ceramic material forming insulating body selects the glass ceramic material with low temperature co-fired ability, thus being molten
Disconnected body provides carrier and increases base densities, intensity and reliability, opposing external mechanical impact, and fusing inside fuse
The energy that body fusing produces.
Embodiment 2
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 40 He
The quantity of arc extinguishing layer 50 is two, except for the difference that: the position relationship between cushion 30 and fuse-link 40, arc extinguishing layer 50 is not
With.As shown in figure 5, one of two cushions 30 are formed at that being in top in two arc extinguishing layers 50 of arc extinguishing layer 50()
Upper surface, and another be then formed at the lower surface of another fuse-link 40 (be below in two fuse-links 40 that
Individual).
Embodiment 3
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 41 He
The quantity of arc extinguishing layer 51 is two, except for the difference that: cushion 31 is only one, as shown in fig. 6, it is located at arc extinguishing layer 51(two
Be in individual arc extinguishing layer 51 top that) upper surface.
Embodiment 4
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 42 He
The quantity of arc extinguishing layer 52 is two, except for the difference that: the position relationship between cushion 32 and fuse-link 42, arc extinguishing layer 52 is not
With.As shown in fig. 7, two cushion 32 stratification be in two arc extinguishing layers 52 of arc extinguishing layer 52(above that) upper
Surface.
Embodiment 5
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 42 He
The quantity of arc extinguishing layer 52 is two, except for the difference that: the position relationship between cushion 32 and fuse-link 42, arc extinguishing layer 52 is not
With.As shown in fig. 7, two cushion 32 stratification be in two arc extinguishing layers 52 of arc extinguishing layer 52(above that) upper
Surface.
Embodiment 6
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 43 He
The quantity of arc extinguishing layer 53 is two, except for the difference that: cushion 33 is only one, as shown in figure 8, it is located at arc extinguishing layer 53(two
That being below in individual arc extinguishing layer 51) upper surface.
Embodiment 7
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 44 He
The quantity of arc extinguishing layer 54 is two, except for the difference that: cushion 34 is only one, as shown in figure 9, it is located at fuse-link 44(two
That being below in individual fuse-link 44) lower surface at.
Embodiment 8
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 45 He
The quantity of arc extinguishing layer 55 is two, except for the difference that: cushion 35 is three, and as shown in Figure 10, the 3rd cushion 35 is located at
That being below in two fuse-links 45 of fuse-link 45() lower surface at.
Embodiment 9
The present embodiment provides a kind of fuse of built-in cushion, its structure and similar in embodiment 1, fuse-link 46 He
The quantity of arc extinguishing layer 56 is four, except for the difference that: cushion 36 is four, and as shown in figure 11, first cushion 36 is located at
Be in two arc extinguishing layers 56 of arc extinguishing layer 56(top that) upper surface, second cushion 36 be located at fuse-link 46(two
That being below in individual fuse-link 46) lower surface at, remaining two cushions 36 be located at arc extinguishing layer 56 and fuse-link
46 both sides.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.
Claims (6)
1. a kind of fuse of built-in cushion, it includes insulating body, at least one being formed in described insulating body melts
Disconnected body and be formed at described insulating body both ends and the termination electrode that is connected with described fuse-link it is characterised in that: it is also
Including being formed in described insulating body and be located at least one arc extinguishing layer of described fuse-link surrounding and go out described in being formed at
Segment side face or/and at least one cushion of described fuse-link side face.
2. built-in cushion according to claim 1 fuse it is characterised in that: described cushion be accommodation space or
Person has loose structure.
3. built-in cushion according to claim 1 fuse it is characterised in that: the quantity of described arc extinguishing layer with described
The quantity of fuse-link is consistent, and it is formed on described fuse-link any surface.
4. built-in cushion according to claim 3 fuse it is characterised in that: described arc extinguishing layer be located at described buffering
Between layer and described fuse-link.
5. built-in cushion according to claim 1 fuse it is characterised in that: the thickness of described arc extinguishing layer be 0.5 ~
20mil.
6. built-in cushion according to claim 1 fuse it is characterised in that: the thickness of described cushion be 1mil
~15mil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004805.4U CN205920946U (en) | 2016-08-31 | 2016-08-31 | Fuse of built -in buffer layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004805.4U CN205920946U (en) | 2016-08-31 | 2016-08-31 | Fuse of built -in buffer layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920946U true CN205920946U (en) | 2017-02-01 |
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ID=57869073
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621004805.4U Active CN205920946U (en) | 2016-08-31 | 2016-08-31 | Fuse of built -in buffer layer |
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| CN (1) | CN205920946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206201A (en) * | 2016-08-31 | 2016-12-07 | Aem科技(苏州)股份有限公司 | The fuse of a kind of built-in cushion and manufacture method thereof |
| CN109192635A (en) * | 2018-10-19 | 2019-01-11 | Aem科技(苏州)股份有限公司 | A kind of fuse and its production method |
-
2016
- 2016-08-31 CN CN201621004805.4U patent/CN205920946U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206201A (en) * | 2016-08-31 | 2016-12-07 | Aem科技(苏州)股份有限公司 | The fuse of a kind of built-in cushion and manufacture method thereof |
| CN106206201B (en) * | 2016-08-31 | 2019-03-15 | Aem科技(苏州)股份有限公司 | A kind of fuse and its manufacturing method of built-in buffer layer |
| CN109192635A (en) * | 2018-10-19 | 2019-01-11 | Aem科技(苏州)股份有限公司 | A kind of fuse and its production method |
| CN109192635B (en) * | 2018-10-19 | 2024-02-13 | Aem科技(苏州)股份有限公司 | Fuse and production method thereof |
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