A kind of fuse piece and the assemble method with the fuse-link of the fuse piece and the fuse-link
Technical field
The present invention relates to a kind of fuse-link technical field, more particularly to a kind of fuse piece and fuse-link with the fuse piece and should
The assemble method of fuse-link.
Background technology
Fuse refers to that when current lead-through fuse piece, which generates heat, makes fuse piece be from the electric elements for being melted to fusing
Protect a kind of electric elements of circuit.
At present, the Chinese patent of Publication No. CN204289316U in the market discloses a kind of fuse piece, including fuse piece sheet
Body, the fuse piece ontology have two sides that are opposite and being connect with contact knife, and several columns row is offered on fuse piece ontology
Hole, round are made of several through-holes, and the line of centres of each row through-hole is parallel to the side of fuse piece ontology, and each two is adjacent
It is the connecting portion of entity between through-hole, the distance of the connecting portion is less than the radius of each through-hole, the fuse piece ontology
It is provided with the buffer part that connecting portion is prevented to be broken.
In said program, referring to its disclosed attached drawing, there is several columns round on fuse piece ontology, round is by several sets of vias
Into the shape of through-hole is close to round structure, then the connection length between two neighboring through-hole in same round is from centre
(Refer to the line of centres of round)Gradually increase to both sides, the size of the resistance value in the unit length perpendicular to the line of centres
It is gradually reduced from centre to both sides;Therefore during the fusing of fuse piece ontology, the resistance value of each position is different between two neighboring through-hole,
Actually meeting the resistance value of fusing requirement may exist only at the shortest distance between two through-holes, at the shortest distance most
First start the starting the arc and arcing, and backward both sides are transmitted, last blow-out, because the variation of the resistance value arc time is more unstable,
Thus fuse piece ontology may be caused to overload with the disjunction under short circuit current not in time.
Invention content
The first object of the present invention is to provide a kind of fuse piece, advantage be under overload and short circuit current the disjunction of fuse piece and
When, it is rapid.
The present invention above-mentioned technical purpose technical scheme is that:A kind of fuse piece, including fuse piece sheet
Body, the fuse piece ontology include transverse sides and longitudinal side, and offer several columns on the fuse piece ontology puts down with transverse sides
Capable round, round are made of several disjunction slots, disjunction slot close to the side of longitudinal side in hatch frame, phase in same round
Segmenting part is formed between adjacent two disjunction slots, segmenting part is rectangular configuration.
Through the above technical solutions, when current overload fuse piece ontology disjunction, fuse piece ontology will pass through the starting the arc-arcing-and put out
The process of arc;Segmenting part is in rectangular configuration, and the width of segmenting part determines the size of resistance value, and the bigger resistance value of width is smaller,
Otherwise resistance value is bigger, and a corresponding resistance value, segmenting part both sides still correspond to the resistance value of identical numerical value among segmenting part, because
The resistance value of this segmenting part each position is basically identical, then using the resistance value corresponding to arcing as reference, entire segmenting part is full
Meet arcing requirement in sufficient arcing requirement rather than single line, can be obtained by calculating and actual test, break is big
Big to shorten, disjunction is rapid much sooner;And the energy consumed during segmenting part arcing is corresponding to its width, due in this programme points
The area in disconnected portion is smaller, and then the quantity combusted of segmenting part is less, and corresponding arcing heat is smaller, and the gas of generation is less, can
The gas pressure in disjunction inside fuse-link is reduced, thus can improve the safety of fuse-link.
The present invention is further arranged to:The both sides of the segmenting part are equipped with buffer part, and the width of the buffer part divides backwards
The line of centres of fault trough gradually increases;The width of the segmenting part is 0.49mm, length 0.85mm.
Through the above technical solutions, being different from segmenting part in buffer part, using disjunction slot as reference, buffer part is in disjunction slot
Form inner chamfer structure, when entire fuse piece ontology pulls open and is tensioned, power suffered by the position of buffer part can by it is interior fall
The structure at angle realizes the dispersion of stress, improves drag so that the disjunction of segmenting part is more accurate, and segmenting part is in width
0.49mm, disjunction when length is 0.85mm is efficient, and structure is more secured.
The present invention is further arranged to:Several craft pieces, the length of craft piece are equipped at the transverse sides of the fuse piece ontology
It spends for 7mm, and the spacing between adjacent process piece is 0.4mm.
Through the above technical solutions, each craft piece can turn down, larger join domain is formed after craft piece fold, it can be into
One step connects the inner wall of fuse, and after fuse piece ontology is bent, then craft piece fixed, then fuse piece ontology can be caused to keep curved
Bent state, thus fixed fuse piece ontology is more regular orderly in fuse-link, convenient for statistics numbers.
The present invention is further arranged to:The fuse piece ontology, which is equipped with, fills sand launder, and the width for filling sand launder is 1mm, fills sand launder
Length be 7.8mm;The separated place for filling sand launder and being connected to craft piece, is formed with folding edge between craft piece and filling sand launder, should
Folding is turned down along for craft piece, and fills one end inner wall rounded corner of the sand launder far from craft piece.
Through the above technical solutions, needing to fill sand in fuse-link, and keep filling the abundance of sand amount, and fuse piece ontology is installed
The structure of similar wall may be formed in fuse-link afterwards, i.e., filling sand at this time can not be filled up by the obstruction of fuse piece ontology;Fill sand
So that fuse piece ontology has the function of sand leakage, filler enters the opposite side of fuse piece ontology by filling sand launder, thus makes for the setting of slot
Fillings sand in fuse-link keeps higher rate of filling up, fill sand launder and be connected to after craft piece realizes craft piece fold expansion, filling
Sand launder, which is also formed simultaneously, to be open towards outside fuse-link, and the operation for thus filling sand is more smooth, and fills the rounded corner inside sand launder
Structure causes the lear energy for filling sand launder to be improved, in addition folding edge i.e. craft piece and the link position for filling sand launder, without
Additional mark by rolling over along can craft piece be carried out fold molding, improves fuse piece ontology in shaping efficiency when assembled.
The present invention is further arranged to:Three row of round setting on same fuse piece ontology, each round equidistantly distributed are adjacent
The distance of round is 5mm, and fuse piece ontology is equipped with Xi Qiao between adjacent rows of perforations.
Through the above technical solutions, three rounds of setting can serve as the disjunction of fuse piece ontology, when any one row round point
Have no progeny, fuse piece ontology can disjunction, it is thus achieved that three work feedback results, the fuse piece ontology that tin bridge structure namely works
On be welded with Xi Qiao, by taking copper as an example, the Xi Qiao that copper is surrounded by the low melting point of tin, that is, during overload melts first, and copper and tin is mutual
Infiltration forms lower melting-point copper-tin alloy so that copper fuses at a lower temperature, so that the fusing-off temperature of fuse piece ontology
Decline, improve safety.
The second object of the present invention is to provide a kind of fuse-link, and advantage is the disjunction of the fuse piece under overload and short circuit current
It is rapid in time.
The present invention above-mentioned technical purpose technical scheme is that:It is a kind of molten with above-mentioned fuse piece
Disconnected body including fusion tube, is made, a diameter of 38mm of fusion tube in the fusion tube filled with high-silicon quartzite sand, fusion tube of 95 porcelain, long
It spends for 53mm, the both sides of fusion tube are equipped with end cap and the contact knife for electrical connection
Through the above technical solutions, can realize the timely disjunction under overload and short circuit current using the fusion tube, peace is improved
Quan Xing.
The present invention is further arranged to:Single fuse piece ontology include four it is mutually isostructural, transversely side is arranged successively
Caulome, the caulome number in fusion tube is 20, and the length of caulome is 63mm, width 2.8mm, thickness 0.21mm, each
Caulome includes and the equal number of segmenting part of round.
Through the above technical solutions, each caulome is gathered around, there are two craft piece, half to fill sand launder, three segmenting parts, passes through meter
Calculation can obtain, and 20 caulomes of setting are to realize that rated current is 400A, therefore five fuse piece ontologies can be selected;Adjacent caulome
Link position is significantly easily distinguished, and multiple and different required caulome numbers of rated current can be achieved by calculating.
The present invention is further arranged to:The inner wall of the end cap is equipped with several deep gouges for supplying craft piece insertion, deep gouge
Length is more than the length of craft piece, and deep gouge is evenly distributed with along the longitudinal center line of end cap.
Through the above technical solutions, can be embedded in deep gouge after craft piece fold, each craft piece contradicts the interior of deep gouge at this time
The matching relationship of wall, craft piece and deep gouge causes fuse piece ontology to keep the state of bending, and realized after craft piece insertion deep gouge
Install relatively stable, after one of end cap is installed, other end end cap can directly coordinate fuse piece ontology, without being bent fuse piece again
Ontology.
The present invention is further arranged to:The end cap is equipped with the elastic card turned down into deep gouge, and elastic card is close
The side of deep gouge is bent backwards to deep gouge.
Through the above technical solutions, one of end cap can be by elastic card by fuse piece ontology firm grip, another
End cap can then remove the elastic card so that fuse piece ontology is directly contradicted to deep gouge.
The third object of the present invention is to provide a kind of assemble method of fuse-link, and advantage is should under overload and short circuit current
The disjunction of fuse piece is rapid in time.
The present invention above-mentioned technical purpose technical scheme is that:A kind of assembling side of fuse-link
Method includes the following steps:
Step1:Fuse piece is chosen according to the quantity of caulome;
Step2:The fuse piece in step1 is taken, by each craft piece that fuse piece is connected along the folding edge fold of corresponding position;
Step3:The fuse piece in step2 is taken, fuse piece is bent along its width direction;
Step4:The fuse piece in step3 is taken, takes fusion tube, contact knife and end cap, contact knife is installed, fuse piece is placed in fusion tube,
It will be in the deep gouge of craft piece insertion end cap;
Step5:The filler into fusion tube after filling up fusion tube, then takes end cap and contact knife to seal fusion tube and installs.
In conclusion the invention has the advantages that:1st, the resistance value of segmenting part is basically identical in a certain range,
It realizes under overload and short circuit current, the quick disjunction of segmenting part gamut has reached the process of quick blow-out-arc extinguishing, simultaneously
Burning energy consumption is few, and the gas of generation is few;2nd, in assembling, craft piece can turn down for assembling fuse piece ontology, be formd after expansion
Sector structure, connection are more stablized;3rd, sand is filled after filling sand launder causes multiple fuse piece ontologies to assemble, inside fuse-link still with more
Channel, fill sand to fill up rate higher.
Description of the drawings
Fig. 1 is the structure diagram of embodiment one;
Fig. 2 is enlarged drawing at A in Fig. 1;
Structure diagram when Fig. 3 is the craft piece fold of embodiment one, the bending of fuse piece ontology;
Fig. 4 is the structure diagram of embodiment two;
Fig. 5 is the structure diagram of embodiment three;
Fig. 6 is the assembling schematic diagram of the fuse piece ontology of embodiment three;
Fig. 7 is the end cap sectional view of embodiment three;
Fig. 8 is the end cap sectional view of example IV;
Fig. 9 is enlarged drawing at B in Fig. 8.
Reference numeral:1st, fuse piece ontology;2nd, transverse sides;3rd, longitudinal side;4th, round;5th, disjunction slot;6th, segmenting part;7、
Buffer part;8th, craft piece;9th, edge is rolled over;10th, Xi Qiao;11st, fusion tube;12nd, end cap;13rd, contact knife;14th, caulome;15th, deep gouge;16th, bullet
Property card;17th, sand launder is filled;18th, asbestos bed course.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
Embodiment one:Such as Fig. 1, a kind of fuse piece, including fuse piece ontology 1, wherein fuse piece ontology 1 includes transverse sides 2 and indulges
To side 3, which is equipped with three row rounds 4, and three row rounds 4 are parallel with transverse sides 2;Round 4 is by multiple disjunction slots
5 compositions, the disjunction slot 5 contacted with longitudinal side 3 are separated into half;In same round 4, adjacent two disjunction slots 5 it
Between be formed with segmenting part 6, with reference to Fig. 2, segmenting part 6 is actually rectangular configuration for the structure of the segmenting part 6.
The structure of segmenting part 6 is analyzed according to fig. 2, and the width of segmenting part 6 is 0.49mm, which counted by resistance value
Acquire, the connection width between two disjunction slots 5 that segmenting part 6 is realized is basically unchanged, fuse piece ontology 1 it is uniform in material
When, the connection width is wider, and area is bigger, and corresponding resistance value is then smaller, in arcuate structure, actually only intermediate
Central junction line meets the corresponding requirement of resistance value, and the resistance value extended to both sides can not correspond to.The disjunction of this programme
Among portion 6 a corresponding resistance value, segmenting part 6 leave the line of centres and still correspond to the resistance value of identical numerical value, such as leave
The heart line 0.1mm or 0.2mm, spanning length resistance value in the range of segmenting part 6 remain relatively stable.Work as current overload
When, the burning of analogy match, fuse piece ontology 1 is by the process Jing Guo the starting the arc-arcing-blow-out, and the arc time is more long, the blow-out time
It is more slow, negatively affect more such as caused disjunctions not in time, gas expansion brought in combustion process etc.;Segmenting part 6
Entirety is satisfied by arcing requirement, and thus each position has reached basically identical starting the arc effect, when can find disjunction by test
Between greatly reduce.Also, the advantageous effect brought simultaneously is that the energy consumption of burning is lacked, and the gas expansion situation of generation is less.
With reference to Fig. 1 and Fig. 3, the both lateral sides of fuse piece ontology 1 are connected separately with three pieces craft piece 8, and the length of craft piece 8 is
7mm, the spacing between adjacent process piece 8 are 0.4mm, which is Fig. 1, after craft piece 8 turns down
Angle is formed with other positions of fuse piece ontology 1, further crimps fuse piece ontology 1 again, the craft piece 8 on fuse piece ontology 1 will dissipate
Open form is into sector structure, and structure such as Fig. 3 under the state of craft piece 8, the range that craft piece 8 can connect at this time is larger, realizes
Bonding strength higher.It is equipped on fuse piece ontology 1 and fills sand launder 17, the width for filling sand launder 17 is 1mm, length 7.8mm, and fills sand
Slot 17 is connected to the interval of craft piece 8, folding is formed between craft piece 8 and filling sand launder 17 along 9, the folding is along 9 for craft piece 8
Fold, after craft piece 8 turns down, after fuse piece ontology 1 is bent, filling sand launder 17 still has certain through-plane, can be filled in fuse-link
Corresponding conveying channel is provided during sand filler, the filling sand for improving fuse-link fills up rate.
Embodiment two:The difference lies in such as Fig. 4, be provided with tin bridge 10, Xi Qiao between round 4 with embodiment one
Tin bridge 10 is welded on the fuse piece ontology 1 that 10 structures namely work, by taking copper as an example, by the low melting point of tin, that is, when overloading
The tin bridge 10 for surrounding copper melts first, and copper and tin interpenetrates to form lower melting-point copper-tin alloy so that copper is at a lower temperature
Fusing so that the fusing-off temperature of fuse piece ontology 1 declines, improves safety.
Embodiment three:Such as Fig. 5, a kind of fuse-link including embodiment one or embodiment two, further includes fusion tube 11, the fusion tube
11 a diameter of 38mm, length 53mm, the both sides of fusion tube 11 are equipped with end cap 12, and end cap 12 is equipped with contact knife 13, and contact knife 13 is used
In electrical connection, fuse piece ontology 1 is then electrically connected with end cap 12.Wherein fusion tube 11 is made of 95 ceramic materials, 95 porcelain have hardness it is high,
The characteristics of wearability, good corrosion resistance.
With reference to Fig. 1 and Fig. 6, fuse piece ontology 1 can be divided into four caulomes 14, and a caulome is had chosen in the dotted line frame in Fig. 1
14, the length of each caulome 14 is 63mm, width 2.8mm, each caulome 14 gather around there are two craft piece 8, half fill sand launder 17,
Three segmenting parts 6, transversely side 2 is sequentially connected, arranges four caulomes 14, by calculating and testing and combine IS0-8820-8
Standard can obtain, the rated voltage of rated current, 500V for 400A needs the caulome 14 that 20 thickness are 0.21mm, also
It is 5 fuse piece ontologies 1, rated current, the rated voltage of 500V of 350A need the caulome 14,300A that 17 thickness are 0.21mm
Rated current, the rated voltage of 500V need the caulome 14 that 14 thickness are 0.21mm, the rated current of 250A, the volume of 500V
Constant voltage needs the caulome 14 that 15 thickness are 0.15mm, and rated current, the rated voltage of 500V of 200A need 12 thickness
Caulome 14 for 0.15mm.
With reference to Fig. 7, the inner wall of end cap 12 is equipped with asbestos bed course 18, and asbestos bed course 18 has good arc extinction performance, carries
The arc extinction performance of high internal structure so that the use of fuse-link more safety and stability.
Example IV:The difference lies in reference to Fig. 6, Fig. 8 and Fig. 9, the inner wall of end cap 12 is equipped with more with embodiment three
A deep gouge 15, deep gouge 15 are turned down and are embedded in when being assembled for craft piece 8, and each craft piece 8 contradicts the inner wall of deep gouge 15, craft piece
8 cause fuse piece ontology 1 to keep the state of bending with the matching relationship of deep gouge 15.The end cap 12 of one of fuse-link is equipped with bullet
Property card 16, the elastic card 16 are contradicted to deep gouge 15, and are bent in its end backwards to deep gouge 15, and thus craft piece 8 can be embedded in
Deep gouge 15, and pass through the clamping of elastic card 16 and clamp.
Embodiment five:A kind of assemble method of fuse-link, includes the following steps:
Step 1:Fuse piece is chosen according to the quantity of caulome 14;As 5 fuse piece ontologies 1 will be related in this programme;
Step 2:The fuse piece in step 1 is taken, each craft piece 8 that fuse piece is connected is turned over along the folding of corresponding position along 9
Folding;
Step 3:The fuse piece in step 2 is taken, fuse piece is bent along its width direction;
Step 4:The fuse piece in step 3 is taken, takes fusion tube 11, contact knife 13 and end cap 12, contact knife 13 is installed, fuse piece is placed in
In fusion tube 11, craft piece 8 is embedded in the deep gouge 15 of end cap 12;
Step 5:The filler into fusion tube 11 after filling up fusion tube 11, then takes end cap 12 and contact knife 13 to seal fusion tube 11 and installs.
Main experimental instrument and equipment inventory
Title |
Model |
Number |
Data collecting system |
CRONOS-PL3 |
8308CA07A |
Humiture recorder |
ZDR-F20 |
8421CB09A |
Idea stopwatch |
ST4610-2 |
8088CB07B |
Torque screwdriver |
RTD500CN |
8086DB07B |
Megameter |
ZC25B-3 |
8012CB93B |
Examining report
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
It is all protected in the right of invention by Patent Law.