CN108321062A - A kind of circuit brake and manufacturing method - Google Patents
A kind of circuit brake and manufacturing method Download PDFInfo
- Publication number
- CN108321062A CN108321062A CN201810130283.XA CN201810130283A CN108321062A CN 108321062 A CN108321062 A CN 108321062A CN 201810130283 A CN201810130283 A CN 201810130283A CN 108321062 A CN108321062 A CN 108321062A
- Authority
- CN
- China
- Prior art keywords
- conductor
- molten
- molten conductor
- electric conductor
- circuit brake
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/08—Fusible members characterised by the shape or form of the fusible member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
- H01H69/022—Manufacture of fuses of printed circuit fuses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
Abstract
The invention discloses a kind of circuit brake and manufacturing methods; it is related to circuit fuse technical field of structures; including pedestal, left electric conductor, right electric conductor and the first molten conductor; left electric conductor and right electric conductor may be contained on pedestal; first molten conductor both ends are connect with left electric conductor and right electric conductor respectively; further include the second molten conductor, the second molten conductor is coated on the first molten conductor, and the fusing point of the second molten conductor is less than the fusing point of the first molten conductor.Under overcurrent condition; when the first molten conductor and the second molten conductor temperature are increased to certain value; second molten conductor fusing stream before the first molten conductor fusing is opened; the resistance of entire circuit brake is set to increase; heat on first molten conductor increases; first molten conductor can fuse rapidly; when extremely short pulse overcurrent passes through; second molten conductor, which first melts, absorbs heat; cushioning effect is played, prevents the first molten conductor from accidentally fusing, the circuit brake is simple in structure; it takes up space small, installation and manufacturing cost are all very low.
Description
Technical field
The present invention relates to circuit fuse technical field of structures more particularly to a kind of circuit brake and manufacturing methods.
Background technology
Currently, as electronics and industrial products develop to miniaturization and centralization, the design of electronic circuit is more and more compacter,
Circuit brake on electric vehicle still continues to use traditional insurance design mounting means, and electrical fuse element is by connecting wire bonding
On two pads, two pads are separately positioned on two electric conductors, insulating layer and the supporting layer that substrate is electric conductor, first device
Part overcurrent protection still uses traditional insurance silk element, such as item filiform, sheet, patch-type, plug-in type and glass tubular.
But the fuse on these circuit brakes is required for being mounted on by modes such as plug-in unit, welding and clampings
On the electronic circuit board made, take up space big, and make and increase with installation difficulty, to cause circuit brake
Cost increases.
Invention content
For overcome the deficiencies in the prior art, it is an object of the invention to solve the fuse on current circuit brake
It is required for being mounted on the electronic circuit board made by modes such as plug-in unit, welding and clampings, take up space big, and make
Increase with installation difficulty, the technical issues of to cause the cost of circuit brake to increase.
The present invention adopts the following technical scheme that realization：
The present invention provides a kind of circuit brake, including pedestal, left electric conductor, right electric conductor and the first molten conductor,
The left electric conductor and right electric conductor may be contained on pedestal, the first molten conductor both ends respectively with the left electric conductor and the right side
Electric conductor connects, and further includes the second molten conductor, and the second molten conductor is coated on the described first molten conductor, and described second molten leads
The fusing point of body is less than the fusing point of the described first molten conductor.
Further, multiple through-holes are provided on the described first molten conductor.
Further, multiple through-holes are stamp hole structure.
Further, the described second molten conductor fills up the through-hole.
Further, the described second molten conductor is the alloy of tin, silver and copper composition.
Further, the described first molten conductor is tightly attached to the pedestal.
Further, the described first molten conductor is copper foil.
Further, the left electric conductor, right electric conductor and the first molten conductor are integrally formed.
Further, the pedestal includes matrix and insulating layer, and the lower surface of the insulating layer is connect with described matrix, institute
It states left electric conductor and right electric conductor may be contained within the upper surface of the insulating layer.
The present invention also provides a kind of manufacturing methods of circuit brake comprising following manufacturing step：
(A) matrix and insulating layer are provided, matrix is fixedly connected with the lower surface of insulating layer；
(B) conductive metal is provided, left electric conductor, right electric conductor and the first molten conductor are produced using conductive metal, wherein
Left electric conductor, right electric conductor and the first molten conductor are integrally formed；
(C) corresponding through-hole is produced by etch process on the first molten conductor；
(D) the second molten conductor is filled up in through-hole by heavy tin and electric process of tin；
(E) the second molten conductor is coated on the first molten conductive surface；
(F) left electric conductor, right electric conductor and the first molten conductor are fixed on to the upper surface of insulating layer.
Compared with prior art, the beneficial effects of the present invention are：
By using the circuit brake of above structure, the second molten conductor is coated on the first molten conductor, and second molten leads
The fusing point of body is less than the fusing point of the first molten conductor, under overcurrent condition, when the first molten conductor and the temperature liter of the second molten conductor
When height is to certain value, the second molten conductor fusing stream before the first molten conductor fusing is opened, and the conduction of entire circuit brake is made
Area is reduced, and the resistance value for melting conductor resistance increases, and the heat on the first molten conductor increases, consequently facilitating the first molten conductor melts rapidly
It is disconnected, when extremely short pulse overcurrent by when, the second molten conductor first melt absorption heat, plays certain cushioning effect, prevents the
One molten conductor accidentally fuses, and the circuit brake is simple in structure, takes up space small, and installation and manufacturing cost are all very low, convenient for big
Range uses.
Description of the drawings
Fig. 1 is the structural schematic diagram of the circuit brake of the present invention.
In figure：10, pedestal；11, matrix；12, insulating layer；20, left electric conductor；30, right electric conductor；40, the first molten conductor；
41, through-hole.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
As shown in Figure 1, the present invention provides a kind of circuit brakes, and when occurring overcurrent in electronic circuit, the electricity
Road protect device can protect the element in electronic circuit from go beyond the limit of electric current and caused by damage, circuit brake includes
Pedestal 10, left electric conductor 20, right electric conductor 30 and the first molten conductor 40, left electric conductor 20 and right electric conductor 30 may be contained within pedestal
10 upper surface, 40 both ends of the first molten conductor are electrically connected with left electric conductor 20 and right electric conductor 30 respectively, the circuit brake
Further include the second molten conductor (not shown), the second molten conductor is coated on 40 surface of the first molten conductor, the second molten conductor
Fusing point is less than the fusing point of the first molten conductor 40, and when leading to heavy current to the circuit brake, the second molten conductor will be prior to first
Molten conductor 40 melts.
By using the circuit brake of above structure, the second molten conductor is coated on the first molten conductor 40, and second is molten
The fusing point of conductor is less than the fusing point of the first molten conductor 40, under overcurrent condition, when the first molten conductor 40 and the second molten conductor
When temperature is increased to certain value, the second molten conductor fusing stream before the fusing of the first molten conductor 40 is opened, and entire circuit brake is made
The conductive area of part is reduced, and the resistance value for melting conductor resistance increases, and the heat on the first molten conductor 40 increases, consequently facilitating first is molten
Conductor 40 rapidly fuse, when extremely short pulse overcurrent by when, the second molten conductor first melt absorption heat, play certain buffering
Effect prevents the first molten conductor 40 from accidentally fusing, and the circuit brake is simple in structure, takes up space small, installation and manufacturing cost
It is all very low, it is used convenient for a wide range of.
As preferred embodiment, multiple through-holes 41 are provided on the first molten conductor 40, to adjust the first molten conductor 40
Conductive area, the conductive area of the first molten conductor 40 reduces, when the second molten conductor melts when on the first molten conductor 40, second
Molten conductor resistance increases, and in the case where voltage is constant, the power and thermal acted on the first molten conductor 40 will all increase, from
And the first molten conductor 40 is enable to fuse rapidly.
As preferred embodiment, multiple through-holes 41 are stamp hole structure when on the first molten conductor, in order to when the
When one molten conductor, 40 temperature increases, the first molten conductor 40 can fuse rapidly on its cross section, to make the first molten conductor 40 rise
To the effect of fuse.
As preferred embodiment, the second molten conductor is filled up first and is melted by the second molten conductor by heavy tin and electric process of tin
Through-hole 41 on conductor 40 prevents the first molten conductor 40 from being fractureed easily to increase the intensity of the first molten conductor 40.
In the present embodiment, the second molten conductor is the alloy of tin, silver and copper composition, and Tin Silver Copper Alloy can at different temperatures first
After be melted, when extremely short pulse overcurrent by when, the alloy of the tin silver copper composition in the second molten conductor can be successively melted,
To prevent position and shape of the second molten conductor on the first molten conductor 40 from changing.
First molten conductor 40 is tightly attached to the upper surface of pedestal 10 so that the upper surface of through-hole 41 and pedestal 10, which is constituted, to be accommodated
Chamber in order to which the second molten conductor fills up through-hole 41, while after the second molten conductor in accommodating chamber melts, can cause first to melt and lead
Body 40 overloads, and the followed by first molten conductor 40 can melt, and the first molten conductor 40 plays the protective effect of fuse.
The first molten conductor 40 is copper foil in the present embodiment, in order to open up multiple stamp hole structures on the first molten conductor 40
Through-hole 41, and then the second molten conductor is filled up into the through-hole 41 on the first molten conductor 40 by heavy tin and electric process of tin.
Left electric conductor 20 and right electric conductor 30 are that copper material makes, left electric conductor 20, right electric conductor in the present embodiment
30 and first molten conductor 40 be integrally formed, the additional mounting design of the first molten conductor 40 need not be increased, thereby reduce electricity
The manufacture difficulty of device is protected on road, while having saved the production cost of the circuit brake.
Pedestal 10 includes matrix 11 and insulating layer 12, and matrix 11 is generally rigid material and makes, and matrix 11 is preferably metal
Plate or FR-4 plates, FR-4 plates are also referred to as epoxy glass cloth laminated board, and the lower surface of insulating layer 12 is connect with matrix 11, insulating layer
12 is in resin ceramic compound cutan, resin fiberglass cloth, pure resin glued membrane, heat conductive silica gel, silica gel and bond plies
Any one, left electric conductor 20 and right electric conductor 30 may be contained within the upper surface of insulating layer 12, left electric conductor 20 and right electric conductor
30 with external conductive connection.
The present invention also provides a kind of manufacturing methods of circuit brake comprising following manufacturing step：First, it provides
Matrix 11, is fixedly connected on the lower surface of insulating layer 12 by matrix 11 and insulating layer 12, then, provides a conductive metal, should
Conductive metal is preferably that copper material makes, and left electric conductor 20, right electric conductor 30 and the first molten conductor are produced using conductive metal
40, wherein left electric conductor 20, right electric conductor 30 and the first molten conductor 40 are integrally formed；Pass through etching on the first molten conductor 40
Technique produces multiple through-holes 41 of corresponding stamp hole structure, and it is molten that second is filled up in through-hole 41 by heavy tin and electric process of tin
Conductor coats the second molten conductor on 40 surface of the first molten conductor, finally melts left electric conductor 20, right electric conductor 30 and first and leads
Body 40 is fixed on the upper surface of insulating layer 12, it should be noted that and it is very close to each other between the first molten conductor 40 and insulating layer 12, with
The through-hole 41 on the first molten conductor 40 is filled up convenient for the second molten conductor.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of circuit brake, including pedestal, left electric conductor, right electric conductor and the first molten conductor, the left electric conductor and
Right electric conductor may be contained on pedestal, and the first molten conductor both ends are connect with the left electric conductor and right electric conductor respectively,
It is characterized in that：Further include the second molten conductor, the second molten conductor is coated on the described first molten conductor, the second molten conductor
Fusing point be less than the described first molten conductor fusing point.
2. circuit brake according to claim 1, it is characterised in that：It is provided on the first molten conductor multiple logical
Hole.
3. circuit brake according to claim 2, it is characterised in that：Multiple through-holes are stamp hole structure.
4. circuit brake according to claim 2, it is characterised in that：The second molten conductor fills up the through-hole.
5. circuit brake according to claim 1, it is characterised in that：The second molten conductor is tin, silver and copper group
At alloy.
6. circuit brake according to claim 1, it is characterised in that：The first molten conductor is tightly attached to the bottom
Seat.
7. circuit brake according to claim 1, it is characterised in that：The first molten conductor is copper foil.
8. circuit brake according to claim 1, it is characterised in that：The left electric conductor, right electric conductor and first
Molten conductor is integrally formed.
9. circuit brake according to claim 1, it is characterised in that：The pedestal includes matrix and insulating layer, institute
The lower surface for stating insulating layer is connect with described matrix, and the left electric conductor and right electric conductor may be contained within the upper table of the insulating layer
Face.
10. a kind of manufacturing method of circuit brake, it is characterised in that：It includes following manufacturing step：
(A) matrix and insulating layer are provided, matrix is fixedly connected with the lower surface of insulating layer；
(B) conductive metal is provided, left electric conductor, right electric conductor and the first molten conductor, wherein a left side is produced using conductive metal and leads
Electric body, right electric conductor and the first molten conductor are integrally formed；
(C) corresponding through-hole is produced by etch process on the first molten conductor；
(D) the second molten conductor is filled up in through-hole by heavy tin and electric process of tin；
(E) the second molten conductor is coated on the first molten conductive surface；
(F) left electric conductor, right electric conductor and the first molten conductor are fixed on to the upper surface of insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130283.XA CN108321062A (en) | 2018-02-08 | 2018-02-08 | A kind of circuit brake and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130283.XA CN108321062A (en) | 2018-02-08 | 2018-02-08 | A kind of circuit brake and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108321062A true CN108321062A (en) | 2018-07-24 |
Family
ID=62903198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810130283.XA Pending CN108321062A (en) | 2018-02-08 | 2018-02-08 | A kind of circuit brake and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108321062A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047718A (en) * | 2019-05-31 | 2019-07-23 | 厦门大恒科技有限公司 | A kind of two-part is resistant to the fuse of the fusing structure and use of the lightning current structure |
| CN110310872A (en) * | 2019-05-31 | 2019-10-08 | 厦门大恒科技有限公司 | A kind of multisection type is resistant to the fuse of the fusing structure and use of the lightning current structure |
| WO2020155080A1 (en) * | 2019-02-01 | 2020-08-06 | 林平 | Explosion-proof cartridge fuse, explosion-proof fuse device for same, and explosion-proof fuse strip |
| CN110047718B (en) * | 2019-05-31 | 2024-07-02 | 厦门大恒科技有限公司 | Two-section type lightning current-resistant fusing structure and fuse adopting same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272694A (en) * | 1999-04-30 | 2000-11-08 | 国际商业机器公司 | High laser absorbing copper fuse and its manufacturing method |
| CN102623271A (en) * | 2012-03-31 | 2012-08-01 | Aem科技(苏州)股份有限公司 | Thin film type fuse and production method |
| CN102623272A (en) * | 2012-04-25 | 2012-08-01 | 东莞市贝特电子科技股份有限公司 | Chip fuse |
| JP2014143141A (en) * | 2013-01-25 | 2014-08-07 | Dexerials Corp | Protection element |
| JP2014170728A (en) * | 2013-02-08 | 2014-09-18 | Dexerials Corp | Short circuit element and circuit using the same |
| CN204375684U (en) * | 2015-03-06 | 2015-06-03 | 温州金利达电器有限公司 | Fast acting fuse melt |
| CN204632707U (en) * | 2015-05-20 | 2015-09-09 | 陕西龙伸电气有限公司 | A kind of fused mass of fuse |
| CN208111386U (en) * | 2018-02-08 | 2018-11-16 | 深圳可瑞高新材料股份有限公司 | A kind of circuit brake |
-
2018
- 2018-02-08 CN CN201810130283.XA patent/CN108321062A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272694A (en) * | 1999-04-30 | 2000-11-08 | 国际商业机器公司 | High laser absorbing copper fuse and its manufacturing method |
| CN102623271A (en) * | 2012-03-31 | 2012-08-01 | Aem科技(苏州)股份有限公司 | Thin film type fuse and production method |
| CN102623272A (en) * | 2012-04-25 | 2012-08-01 | 东莞市贝特电子科技股份有限公司 | Chip fuse |
| JP2014143141A (en) * | 2013-01-25 | 2014-08-07 | Dexerials Corp | Protection element |
| JP2014170728A (en) * | 2013-02-08 | 2014-09-18 | Dexerials Corp | Short circuit element and circuit using the same |
| CN204375684U (en) * | 2015-03-06 | 2015-06-03 | 温州金利达电器有限公司 | Fast acting fuse melt |
| CN204632707U (en) * | 2015-05-20 | 2015-09-09 | 陕西龙伸电气有限公司 | A kind of fused mass of fuse |
| CN208111386U (en) * | 2018-02-08 | 2018-11-16 | 深圳可瑞高新材料股份有限公司 | A kind of circuit brake |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155080A1 (en) * | 2019-02-01 | 2020-08-06 | 林平 | Explosion-proof cartridge fuse, explosion-proof fuse device for same, and explosion-proof fuse strip |
| CN110047718A (en) * | 2019-05-31 | 2019-07-23 | 厦门大恒科技有限公司 | A kind of two-part is resistant to the fuse of the fusing structure and use of the lightning current structure |
| CN110310872A (en) * | 2019-05-31 | 2019-10-08 | 厦门大恒科技有限公司 | A kind of multisection type is resistant to the fuse of the fusing structure and use of the lightning current structure |
| CN110047718B (en) * | 2019-05-31 | 2024-07-02 | 厦门大恒科技有限公司 | Two-section type lightning current-resistant fusing structure and fuse adopting same |
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