CN202473804U - Impending fuse-wire type surface-mount fuse - Google Patents
Impending fuse-wire type surface-mount fuse Download PDFInfo
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- CN202473804U CN202473804U CN2012200632224U CN201220063222U CN202473804U CN 202473804 U CN202473804 U CN 202473804U CN 2012200632224 U CN2012200632224 U CN 2012200632224U CN 201220063222 U CN201220063222 U CN 201220063222U CN 202473804 U CN202473804 U CN 202473804U
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Abstract
The utility model discloses an impending fuse-wire type surface mount fuse. An intensifier electrode arranged on the inner side face opposite to an insulator shell plate extends to edges of both ends of an insulator and is electronically connected with a tip electrode, and therefore ends of the intensifier electrode contact with the tip electrode, two ends of a fuse-wire are respectively in surface contact with the corresponding intensifier electrode, and arc extinguishing agents are filled in an inner cavity of the insulator shell plate. When the fuse is experienced hot and cold shocks, even if expansion and contraction differences occur in the fuse-wire, the tip electrode and the insulator, the tip electrode and sides of the two ends of the insulator are still combined, and therefore the reliability of the fuse-wire and the tip electrode connection is guaranteed. Released energy in the fuse-wire melting process of the fuse is effectively absorbed by the arc extinguishing agents, and consequently abilities of the fuse in fire-resistance, anti-carbonation and anti-flashover are greatly improved. The arc extinguishing agents ensure that blown-up, burning board or electric arcing conditions do not happen in the fuse-wire melting process of the fuse.
Description
Technical field
the utility model relates to a kind of unsettled fuse-type surface mounting fuse protector.
Background technology
are along with science and technology development; Electric power/electronic product is variation, complicated day by day; The simple glass tube fuse that applied circuit protecting element is non-in the past, but developed into a new electronic component field of a great variety.Surface mounting fuse protector is as a kind of frivolous little new-type element, is applicable to that its application is boundless in the protective circuit of compact conformation, each electronic product that volume is small.
Main two major types that fuse of
unsettled fuse-type and solid state device type fuse are present small-sized surface mounting fuse protector.The midget fuse of unsettled fuse-type is that fuse (lead) is suspended in the shell of hollow.The two ends of fuse are fixing in a different manner with the termination electrode.Because the thermal transmission coefficient of air is much littler than most solid, therefore the fuse of unsettled fuse-type just can be with fuse failure than the less energy of fuse needs of solid state device type, and its resistance can also be less.
The Airmatrix of
AEM Corp. series midget fuse is that fuse (lead) is suspended in the shell of hollow, and such fuse has advantages such as resistance is little, power consumption is low, and can be through corresponding method of manufacture fast, produce in large quantities.
The reliability that
fuse (lead) is connected with the termination is the important indicator of the surface mounting fuse protector of unsettled fuse-type.Fuse is connected fixing conventional method with the termination be to use scolding tin that the fuse two ends are welded on two terminations.The shortcoming of this design be scolding tin when fusion can with fuse materials commonly used, like copper, form low-melting alloy.The formation of this low-melting alloy can reduce the consistency of fuse blows characteristic.U.S. Pat 2010245025 (A1) has disclosed need not weld and the novel surface that fuse is connected with the termination mounted the structure of fuse; The one type of fuse that discloses comprises a shell; Two termination metal caps; And one extend to the outer fuse of shell and end cap, and the metal cap outer surface bending forms and is electrically connected fuse in the termination, and fuse is on being welded to pcb board the time; The tin cream that welding is used links into an integrated entity fuse, termination metal cap and pcb board, guarantees the inner no scolding tin of fuse.This kind fuse has following shortcoming: first; There is security risk for the physical connection mode between end cap and the fuse; The simple tin cream that uses when welding pcb board that relies on links into an integrated entity fuse, termination metal cap and pcb board; When tin cream is climbed the tin insufficient height or weld defect is arranged, can cause fuse and end cap bad connection; The second, there is directivity in welding, and promptly solder side is necessary for the crooked direction of line, and this is that production and processing bring great inconvenience; The 3rd, the bonding strength between shell and the metal cap is difficult to guarantee that in addition, this fuse adopts between shell and the metal cap and assembles one by one, and production efficiency is lower.The fuse of the another kind of type that patent US2010245025 (A1) discloses simultaneously, it comprises a glass shell, a fuse that extends to outside the shell, the inner no scolding tin of this kind fuse; Can make the fuse blows characteristic consistent; But fuse is fixing through hot pressing or encapsulation or metallized mode, needs to adopt the method for assembling one by one to be assembled, and production efficiency is lower; And shell is glass, and is broken easily.
japanese announces that JP2006-244948 has disclosed the method with the unsettled fuse of the superimposed making of two-tier circuit plate (lead) type surface mounting fuse protector.The fuse that this method is made has fuse and extends to the characteristic beyond the shell; The two ends of fuse only contact with coated electrode formation face through end face; Setting can not be guaranteed bonding strength and enough reliabilities like this; Especially when fuse stood thermal shock, the expansion shrinkage difference between matrix and the coated electrode very easily caused peeling off between matrix and the coated electrode, thereby caused fuse to be connected inefficacy with coated electrode.
Chinese patent 200910007157.6 provides a kind of surface mounting fuse protector and manufacturing approach.The fuse that this method is made not only fuse two ends end face is electrically connected with coated electrode formation; Simultaneously since middle level termination electrode and cover layer be electrically connected; And the fuse side faces at both ends is close to the middle level termination electrode, has realized the indirect connection features of fuse and coated electrode, has improved connection reliability; But the fuse termination with form 3 D stereo being connected of coated electrode not yet and connect; Can not guarantee bonding strength and enough reliabilities, especially when fuse stands thermal shock, fuse is prone to cause fuse to be connected inefficacy with coated electrode with expansion shrinkage difference between the coated electrode.In addition, fuse is unsettled in limited space, when fuse blows, can discharge more heat, and the heat that is discharged can cause fuse shell to burst if in limited space, can't discharge or be absorbed, and burns the plate carbonization, even produces arcing phenomena.
Summary of the invention
The purpose of
the utility model provides a kind of unsettled fuse-type surface mounting fuse protector; Fuse is more reliable with being connected of end electrode on this surface mounting fuse protector, and this surface mounting fuse protector has good fire-resistant, anti-carbonization and antiarcing-over ability.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of unsettled fuse-type surface mounting fuse protector comprises
Insulator with inner chamber, said insulator comprise the first mutually stacked cover plate and second cover plate, and said first cover plate, the said second cover plate opposed inside face all offer groove, and the groove of said first cover plate, said second cover plate closes up the said inner chamber of formation;
The lateral ends electrode has at least the two ends of the lateral surface of a cover plate to be provided with said lateral ends electrode in said first cover plate, said second cover plate;
Fuse, said fuse clip are located between said first cover plate and said second cover plate, and the mid portion of said fuse is suspended in the said inner chamber, and the outside in said insulator both ends of the surface is all stretched out at the both ends of said fuse;
End electrode, said insulator both ends of the surface are provided with said end electrode, and corresponding said end electrode is connected with said lateral ends electrode;
Said fuse also comprises
Intensifier electrode; Have at least the both ends of a medial surface to be provided with said intensifier electrode in said first cover plate, the said second cover plate opposed inside face; The end of said intensifier electrode contacts to the extension of the end of said insulator and with corresponding said end electrode formation face respectively, and the two ends of said fuse contact with corresponding said intensifier electrode formation face respectively;
arc quenching agent, said arc quenching agent is filled with in said inner chamber, and said arc quenching agent envelopes the outside circumference that said fuse is suspended at the mid portion in the said inner chamber.
preferably are provided with said intensifier electrode on the medial surface of said first cover plate, said second cover plate.
preferably, the end of said intensifier electrode extends to the edge, two sides of said insulator respectively to the two ends of said insulator, the whole end of said intensifier electrode all is provided with the said end electrode contact of corresponding end.
preferably, said intensifier electrode is curved.
preferably are coated with anti-combustion coating on the chamber wall of said inner chamber.
preferably, the both ends that said fuse exposes said insulator outside all bend, said two crooked ends are close to the corresponding end-faces of said insulator respectively, said end electrode envelopes said two crooked ends.
further preferably, said end electrode envelopes the whole end face of said insulator.
preferably, said first cover plate, the bonding fixed connection of the said second cover plate opposed inside face, said fuse is through being bonded and fixed between said first cover plate and the second cover plate opposed inside face.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
(1) through on insulator cover plate of outer casing opposed inside face, intensifier electrode being set; And extend to the insulator edges at two ends and end electrode is electrically connected; Make the end of intensifier electrode contact, thereby improve the adhesion between end electrode and the insulator with end electrode, make simultaneously fuse two ends respectively with corresponding intensifier electrode between formation face contact; Realize that fuse is connected with the indirect of end electrode; Improved the reliability that connects largely, made this fuse when standing thermal shock, even fuse, end electrode and insulator expand difference in shrinkage; Still combine between the side, two ends of end electrode and insulator, thereby guaranteed the reliability that fuse is connected with end electrode;
(2) make the energy that discharges in the fuse failure process effectively absorbed by arc quenching agent through in the inner chamber of insulator cover plate, filling arc quenching agent; Improve fire-resistant, anti-carbonization of fuse and antiarcing-over ability, thereby guarantee plate or arcing situation not to occur blowing up, burning in the fuse blows process.
Description of drawings
Accompanying drawing 1 is the stereogram of unsettled fuse-type surface mounting fuse protector in the utility model;
Accompanying drawing 2 is the front view of unsettled fuse-type surface mounting fuse protector in the utility model;
Accompanying drawing 3 is along the cutaway view of A-A direction in the accompanying drawing 2;
Accompanying drawing 4 when making the unsettled fuse-type surface mounting fuse protector of the utility model for the key diagram of the vertical and horizontal cutting of fuse array;
In the process of accompanying drawing 5 for the unsettled fuse-type surface mounting fuse protector of manufacturing the utility model, the longitudinal sectional view one of two substrates before the back cutting of mutually stacked bonding, fuse clip is located between two substrates, is wrapped up by arc quenching agent around the fuse;
In the process of
accompanying drawing 6 for the unsettled fuse-type surface mounting fuse protector of manufacturing the utility model; The centre position of two substrates of mutually stacked bonding perforation on the edge is cut the back and is electroplated the longitudinal sectional view two of upper surface electrode, is wrapped up by arc quenching agent around the fuse.
wherein: 1, insulator; 2, first cover plate; 3, second cover plate; 4, inner chamber; 5, lateral ends electrode; 6, end electrode; 7, plane electrode; 8, concave electrodes; 9, coated electrode; 10, fuse; 11, arc quenching agent; 12, intensifier electrode; 13, perforation; 14, electrode band; 15, substrate.
Embodiment
The further elaboration of structure do to the unsettled fuse-type surface mounting fuse protector of the utility model is come below in conjunction with accompanying drawing and concrete embodiment in
.
referring to shown in Fig. 1-3, a kind of unsettled fuse-type surface mounting fuse protector comprises insulator 1, lateral ends electrode 5, end electrode 6, fuse 10 with inner chamber.Insulator 1 comprises the first mutually stacked cover plate 2 and second cover plate 3; All offer groove on first cover plate 2, second cover plate, the 3 opposed inside faces; Be folded inner chamber 4, the first cover plates 2, second cover plate 3 that form insulator 1 of groove on first cover plate 2 and second cover plate 3 adopts insulating material to process.Be provided with lateral ends electrode 5 on the two ends of the lateral surface of first cover plate 2, second cover plate 3; Fuse 10 is folded between first cover plate 2 and second cover plate 3; The mid portion of fuse 10 is suspended in the inner chamber 4; The both ends of the surface of insulator 1 are provided with end electrode 6, and the end electrode 6 and the lateral ends electrode 5 of corresponding end are electrically connected.The special design of the utility model is: this fuse also comprises intensifier electrode 12 and arc quenching agent 11; Intensifier electrode 12 is arranged on the both ends of first cover plate 2, second cover plate, 3 opposed inside faces; Intensifier electrode 12 contacts to the extension of the two ends of insulator 1 and with corresponding end electrode 6 formation faces respectively; Simultaneously; Also formation face contact between the two ends of fuse 10 and the intensifier electrode of corresponding end 12 can make the part peripheral side at fuse 10 two ends fit tightly mutually with the contact of formation face with corresponding intensifier electrode 12 respectively when being provided with, so just formed indirect connection the between fuse 10 and the end electrode 6 through intensifier electrode 12.Here, intensifier electrode 12 extends to the edge, two sides of insulator 1 respectively to the two ends of insulator 1, and all there is combination the whole end of intensifier electrode 12 with the end electrode 6 of corresponding end.First cover plate 2, second cover plate 3 all can adopt circuit board substrate, through the mode of corrosion the partial electrode material on the circuit board are removed, and the circuit board after the corrosion is first cover plate 2 and second cover plate 3 that is provided with lateral ends electrode 5 and intensifier electrode 12.Arc quenching agent 11 is filled with in inner chamber 4, and fuse 10 is suspended at the mid portion of inner chamber 4 by arc quenching agent 11 parcels, and arc quenching agent 11 can adopt the high specific heat capacity filler; Like materials such as silicon rubber, pottery, metal oxide particles; Also can be the mixture of two or more above-mentioned particle, perhaps above-mentioned particle and other mixtures of material are like waterglass or magnesium hydroxide etc.; Can emit hydrone after its decomposes, the plasma of heat absorption and cancellation electric arc.Like this, the energy that when fuse 10 fusing, discharges can be absorbed by arc quenching agent 11 effectively, thereby guarantees that plate or arcing situation do not appear blowing up, burning in fuse in fusing process.On the wall of inner chamber 4, also be coated with anti-combustion coating (not indicating among the figure), this anti-combustion coating can adopt silicon rubber, waterglass etc., can strengthen the fire resistance of fuse like this.
The outside in insulator 1 both ends of the surface is all stretched out at the two ends of
fuse 10; Vat and the sulculus that is opened on the middle vat opposed slot limit in the middle of groove on second cover plate 3 comprises; Fuse 10 passes sulculus, and the outside in insulator 1 both ends of the surface is stretched out at the realization both ends.Be fixed together through adhesive bonds when first cover plate 2 and second cover plate 3 are stacked; Fuse 10 also is located between first cover plate 2 and second cover plate, the 3 opposed inside faces through adhesive bonds ground geometrical clamp, and fuse 10 also has other set-up modes except in the sulculus that is arranged on second cover plate 3; Vat, both sides sulculus in the middle of for example the groove of first cover plate 2 is set to comprise; Fuse is arranged in the sulculus of first cover plate 2, this can realize that also fuse 10 geometrical clamps are located between first cover plate 2 and second cover plate 3, perhaps; Vat, both sides sulculus in the middle of groove on first cover plate 2 and second cover plate 3 all is set to comprise; Like this, first cover plate 2 and second cover plate 3 are when stacked, and the vat of first cover plate 2 and second cover plate 3, sulculus correspondence respectively close up; Fuse 10 passes the outside of insulator 1 through the sulculus that closes up, and is suspended in the vat that closes up.
The both ends that
fuse 10 exposes insulator 1 outside all bend; The corresponding end-faces setting that insulator 1 is all pressed close at fuse 10 crooked both ends; The end electrode 6 at two ends envelopes the crooked both ends of fuse 10 respectively; Fuse 10 sides are being close near end positions and intensifier electrode 12; And intensifier electrode 12 is one with corresponding first cover plate 2 or second cover plate 3, and intensifier electrode 12 is connected with the end electrode 6 of corresponding end face and has increased the adhesion between end electrode 6 and the insulator 1, and fuse 10 side faces at both ends are close to intensifier electrode 12 simultaneously; Realize the indirect connection features of fuse 10 and end electrode 6, improved the reliability that connects on largely.When fuse stands thermal shock; Even fuse 10, end electrode 6 and insulator 1 expand difference in shrinkage; As long as guaranteeing the whole end of intensifier electrode 12 combines with end electrode 6; Just can make to combine between end electrode 6 and the side, insulator 1 two ends, thereby guarantee the reliability that fuse 10 is connected with end electrode 6.In the present embodiment; Intensifier electrode 12 is arc shape as shown in Figure 3; Like this can be under the whole end of intensifier electrode 12 and situation that end electrode 6 combines; Guarantee the enough fixed-area of first cover plate 2 and second cover plate, 3 opposed inside faces bonding, reduce in the fuse blows process arcing to greatest extent and blow up phenomenon.
are when this fuse is welded on the pcb board; Because the two ends of the lateral surface of first cover plate 2 and second cover plate 3 are provided with lateral ends electrode 5; Like this insulator 1 both can just put (promptly second cover plate 3 shown in Fig. 1-2 is positioned at first cover plate, 2 belows) also can put upside down (i.e. first cover plate 2 be positioned at second cover plate 3 below) weld fixing; This can realize that all pcb board is electrically connected with fuse 10 through lateral ends electrode 5, end electrode 6, intensifier electrode 12; Certainly, in other execution mode, also can be only lateral ends electrode 5 be set at the two ends of the lateral surface of first cover plate 2 and second cover plate 3.
in order to improve the solderability of fuse on pcb board, the then essential electrode material area coverage that increases end electrode is in Fig. 1; End electrode 6 envelopes the whole end face of insulator 1, has made things convenient for welding to climb tin like this, reduces the weld failure phenomenon to greatest extent; Especially for larger-size surface mounting fuse protector; Thickness is climbed the tin difficulty than large end face, end electrode 6 then is set covers whole end face, has significantly strengthened weld strength and reliability.
are in Fig. 1; The side, both sides that the both ends of the surface of insulator 1 all have middle concave surface, join with middle concave surface; Middle concave surface extends on second cover plate 3 and the medial surface opposite external side face from first cover plate 2 and medial surface opposite external side face; The crooked end of fuse 10 is positioned at the middle concave surface of respective end, and presses close to this concave surface setting, and is corresponding; Through electroplating when end face coats end electrode 6, the plane electrode 7 of the side, covering both sides that end electrode 6 joins by the concave electrodes 8 on the concave surface in the middle of covering, with concave electrodes 8, the fuse coated electrode 9 that covers fuse 10 crooked ends are formed.Through increasing the area coverage of end electrode 8, conveniently climb tin, welding like this.
In order to boost productivity, the unsettled fuse-type surface mounting fuse protector that is proposed in prepared in batches the utility model with intensifier electrode and arc quenching agent, its preparation method may further comprise the steps:
Two substrates 15 of first cover plate 2 and second cover plate 3 are prepared to form in
(1); In two substrates 15, be processed to form the lateral ends electrode pattern on the side of at least one substrate 15; The lateral ends electrode pattern adopts many parallel electrode bands 14 that extend along the longitudinal direction; The longitudinal direction here refers to the above-below direction shown in Fig. 4, and accordingly, the left and right directions among Fig. 4 is horizontal direction.The horizontal direction here, longitudinal direction correspond respectively to the length direction and the Width of the single fuse that following process goes out.Simultaneously, form intensifier electrode 12 patterns at two substrates, 15 lateral ends electrodes, the 5 phase back sides, the intensifier electrode pattern is employed in the motor circular arc matrix at the lateral ends electrode phase back side.The mode of electrode band and electrode circle arc matrix is set; As stated; Can be on substrate adhesive electrodes material such as Copper Foil, the circuit board that perhaps will be stained with electrode material forms electrode band 14 and electrode circle arc matrix through erosion removal partial electrode material.Only on the substrate or on two substrates, be processed to form the lateral ends electrode pattern simultaneously; All be feasible, can only a direction place welding, perhaps just falling and all can weld corresponding to the single fuse that following process goes out; With the above; On the substrate 15 or on two substrates 15, be processed to form the intensifier electrode figure simultaneously, all be feasible only, the single fuse intensifier electrode that goes out corresponding to following process and the contact area of end electrode are little or big.On two substrates 15 have the side of intensifier electrode figure, be processed to form groove array respectively, on the side of two substrates 15, be processed to form the perforation array respectively, as shown in Figure 4, the order of machined grooves array and perforation 13 arrays is priority not.As stated; Have at the same time on the substrate 15 of lateral ends electrode pattern, intensifier electrode and groove array; Lateral ends electrode pattern and intensifier electrode pattern are on relative side; The intensifier electrode pattern is arranged on the identical side with groove array, and bores a hole and 13 pass lateral ends electrode pattern and intensifier electrode pattern;
(2) in the groove array of first cover plate 2 and second cover plate 3, fill arc quenching agent 11, in the anti-combustion coating of inner chamber 4 coatings, with two substrates, 15 stacked bondings; Fuse 10 is through in the groove of bonding geometrical clamp between two substrates 15, and substrate 15 guarantees that corresponding groove is folded on two substrates 15 when stacked, forms array of cavities; Corresponding perforation 13 is over against connection on two substrates 15, and the part of fuse 10 is suspended in the cavity, also has part to be exposed in the perforation 13; As shown in Figure 5; Be exposed to the fuse 10 of perforation in 13 and formed the part that single fuse that following process goes out is exposed, for the perforation 13 that guarantees two substrates 15 over against zero deflection, in the processing of perforation array; Two substrates 15 are stacked, carry out machining process such as punching press, brill and form;
(3) along perforation 13 middle part; Two substrates 15 of the mutually stacked bonding of the i.e. cutting of longitudinal direction in Fig. 4 cut out the section of first cover plate 2 and second cover plate 3 and cut-out fuse 12; Electrode band 14 has also carried out corresponding cutting with electrode circle arc matrix; As shown in Figure 6, have on the section of first cover plate 2 and second cover plate 3 middle concave surface that perforation 13 forms, with the side, both sides of middle concave surface detailed annotation, the outside at first cover plate 2 and second cover plate, 3 accordingly middle concave surfaces is exposed at the both ends of the fuse 10 that cuts off; Above-mentioned cutting is to carry out in the inside of two substrates 15 of mutually stacked bonding; Do not cut to the edge of substrate 15 at least one ends, as shown in Figure 4, guaranteed that so follow-up treatment process can carry out whole base plate; Be batch process, cutting can be passed through methods such as machine cuts, laser cutting and form;
Electroplate on the curved end face of the whole end face of first cover plate 2 and second cover plate 3 and fuse 10
(5); Form end electrode 6; Guarantee that end electrode 6 covers the crooked end of middle concave surface, side, both sides and the fuse of first cover plate 2 and second cover plate 3; Guarantee that end electrode 6 and intensifier electrode 11 ends are electrically connected, and end electrode 6 is electrically connected with lateral ends electrode 5, Fig. 6 has shown when electroplating; Also electroplated on the electrode band 14 of cutting and gone up coating; In actual production process, on electrode band 14, carry out multilayer plating and just can form lateral ends electrode 5, same multilayer coating just can form end electrode 6 (multilayer coating does not clearly draw in each accompanying drawing).Owing to before plating, carried out cutting and the end bent of fuse 10 pressed close to middle concave surface; The end electrode that forms after activation is electroplated like this covers the end face of whole first cover plate 2 and second cover plate 3; Envelope the curved end face of fuse 10; Realized that end electrode 6 is connected with the stable of end of fuse 10, and increased the area coverage of end electrode 6 to greatest extent that end electrode 6 combines with the whole end face of intensifier electrode 12 simultaneously; Guarantee combining closely of end electrode and side, insulator 1 two ends, improved the solderability of fuse and the reliability of electrical connection;
According to array of cavities, horizontal direction promptly shown in Figure 4 cuts accordingly
(6), promptly forms single fuse.
to sum up; A kind of unsettled fuse-type surface mounting fuse protector of the utility model; Through intensifier electrode 12 being arranged on the insulator 1 cover plate of outer casing opposed inside face, and extending to insulator 1 edges at two ends and be connected, make the end of intensifier electrode 12 contact with end electrode 6 with end electrode 6; Improve the adhesion between end electrode 6 and the insulator 1; Make simultaneously fuse 10 two ends respectively with corresponding intensifier electrode 12 between formation face contact, realize that fuse 10 is connected with the indirect of end electrode 6, improved the reliability of connection on largely; This makes this fuse when standing thermal shock; Even fuse, end electrode and insulator expand difference in shrinkage, still combine between the side, two ends of end electrode 6 and insulator 1, thereby guaranteed the reliability that fuse 10 is connected with end electrode 6.The utility model is simultaneously through being filled with arc quenching agent 11 in insulator 1 cover plate inner chamber 4; Make the energy that discharges in fuse 10 fusing process effectively absorbed by arc quenching agent 11; Improve fire-resistant, anti-carbonization of fuse and antiarcing-over ability, thereby guarantee plate or arcing situation not to occur blowing up, burning in the fuse blows process.Through corresponding preparation method can realize this unsettled fuse-type surface mounting fuse protector fast, produce in batches, production efficiency is high.
Claims (8)
1. a unsettled fuse-type surface mounting fuse protector comprises
Insulator with inner chamber, said insulator comprise the first mutually stacked cover plate and second cover plate, and said first cover plate, the said second cover plate opposed inside face all offer groove, and the groove of said first cover plate, said second cover plate closes up the said inner chamber of formation;
The lateral ends electrode has at least the two ends of the lateral surface of a cover plate to be provided with said lateral ends electrode in said first cover plate, said second cover plate;
Fuse, said fuse clip are located between said first cover plate and said second cover plate, and the mid portion of said fuse is suspended in the said inner chamber, and the outside in said insulator both ends of the surface is all stretched out at the both ends of said fuse;
End electrode, said insulator both ends of the surface are provided with said end electrode, and corresponding said end electrode is connected with said lateral ends electrode;
It is characterized in that: said fuse also comprises
Intensifier electrode; Have at least the both ends of a medial surface to be provided with said intensifier electrode in said first cover plate, the said second cover plate opposed inside face; The end of said intensifier electrode contacts to the extension of the end of said insulator and with corresponding said end electrode formation face respectively, and the two ends of said fuse contact with corresponding said intensifier electrode formation face respectively;
Arc quenching agent, said arc quenching agent is filled with in said inner chamber, and said arc quenching agent envelopes the outside circumference that said fuse is suspended at the mid portion in the said inner chamber.
2. a kind of unsettled fuse-type surface mounting fuse protector according to claim 1 is characterized in that: be provided with said intensifier electrode on the medial surface of said first cover plate, said second cover plate.
3. a kind of unsettled fuse-type surface mounting fuse protector according to claim 1 and 2; It is characterized in that: the end of said intensifier electrode extends to the edge, two sides of said insulator respectively to the two ends of said insulator, and the whole end of said intensifier electrode all is provided with the said end electrode contact of corresponding end.
4. according to claim 1 or 2 or 3 described a kind of unsettled fuse-type surface mounting fuse protectors, it is characterized in that: said intensifier electrode is curved.
5. a kind of unsettled fuse-type surface mounting fuse protector according to claim 1 is characterized in that: be coated with anti-combustion coating on the chamber wall of said inner chamber.
6. a kind of unsettled fuse-type surface mounting fuse protector according to claim 1; It is characterized in that: the both ends that said fuse exposes said insulator outside all bend; Said two crooked ends are close to the corresponding end-faces of said insulator respectively, and said end electrode envelopes said two crooked ends.
7. a kind of unsettled fuse-type surface mounting fuse protector according to claim 6, it is characterized in that: said end electrode envelopes the whole end face of said insulator.
8. a kind of unsettled fuse-type surface mounting fuse protector according to claim 1; It is characterized in that: said first cover plate, the bonding fixed connection of the said second cover plate opposed inside face, said fuse is through being bonded and fixed between said first cover plate and the second cover plate opposed inside face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632224U CN202473804U (en) | 2012-02-24 | 2012-02-24 | Impending fuse-wire type surface-mount fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632224U CN202473804U (en) | 2012-02-24 | 2012-02-24 | Impending fuse-wire type surface-mount fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473804U true CN202473804U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200632224U Expired - Lifetime CN202473804U (en) | 2012-02-24 | 2012-02-24 | Impending fuse-wire type surface-mount fuse |
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| Country | Link |
|---|---|
| CN (1) | CN202473804U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745898A (en) * | 2014-01-10 | 2014-04-23 | 南京萨特科技发展有限公司 | Surface mounting type overvoltage and overcurrent protection device and manufacturing method thereof |
| CN104835703A (en) * | 2014-10-27 | 2015-08-12 | 北汽福田汽车股份有限公司 | Fuse and vehicle having the same |
| CN105551905A (en) * | 2016-02-18 | 2016-05-04 | Aem科技(苏州)股份有限公司 | Suspended fuse type surface mounting fuse and preparation method thereof |
| TWI569399B (en) * | 2015-11-27 | 2017-02-01 | Cheering Sun Applied Materials Co Ltd | Chip fuse element with pre-cut substrate and method for making the same |
| CN107564781A (en) * | 2017-09-08 | 2018-01-09 | 苏州达晶微电子有限公司 | A kind of surface mounting fuse protector |
| CN109671746A (en) * | 2018-12-11 | 2019-04-23 | 武汉华星光电半导体显示技术有限公司 | Organic LED display panel and display device |
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2012
- 2012-02-24 CN CN2012200632224U patent/CN202473804U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745898A (en) * | 2014-01-10 | 2014-04-23 | 南京萨特科技发展有限公司 | Surface mounting type overvoltage and overcurrent protection device and manufacturing method thereof |
| CN103745898B (en) * | 2014-01-10 | 2016-02-10 | 南京萨特科技发展有限公司 | A kind of surface-adhered type over-voltage and over-current protector part and preparation method thereof |
| CN104835703A (en) * | 2014-10-27 | 2015-08-12 | 北汽福田汽车股份有限公司 | Fuse and vehicle having the same |
| TWI569399B (en) * | 2015-11-27 | 2017-02-01 | Cheering Sun Applied Materials Co Ltd | Chip fuse element with pre-cut substrate and method for making the same |
| CN105551905A (en) * | 2016-02-18 | 2016-05-04 | Aem科技(苏州)股份有限公司 | Suspended fuse type surface mounting fuse and preparation method thereof |
| CN105551905B (en) * | 2016-02-18 | 2017-11-21 | Aem科技(苏州)股份有限公司 | A kind of suspended-fuse-wire-type surface-mount fuse and preparation method thereof |
| CN107564781A (en) * | 2017-09-08 | 2018-01-09 | 苏州达晶微电子有限公司 | A kind of surface mounting fuse protector |
| CN109671746A (en) * | 2018-12-11 | 2019-04-23 | 武汉华星光电半导体显示技术有限公司 | Organic LED display panel and display device |
| CN109671746B (en) * | 2018-12-11 | 2021-04-27 | 武汉华星光电半导体显示技术有限公司 | Organic light emitting diode display panel and display device |
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