CN204792274U - Resistance element - Google Patents
Resistance element Download PDFInfo
- Publication number
- CN204792274U CN204792274U CN201520495422.0U CN201520495422U CN204792274U CN 204792274 U CN204792274 U CN 204792274U CN 201520495422 U CN201520495422 U CN 201520495422U CN 204792274 U CN204792274 U CN 204792274U
- Authority
- CN
- China
- Prior art keywords
- unit
- solder joint
- joint part
- matrix
- mid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims description 43
- 239000011159 matrix material Substances 0.000 claims description 39
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Fuses (AREA)
- Details Of Resistors (AREA)
Abstract
A resistor element comprises a strip-shaped base body made of insulating materials, a connecting unit, a resistor unit and a circuit breaking safety unit, wherein the connecting unit comprises two welding point pieces arranged at two ends of the base body and a middle piece arranged on the base body, the resistor unit is made of materials with preset resistance, two opposite ends of the resistor unit are respectively connected with one welding point piece and the middle piece, and the circuit breaking safety unit is made of conductor materials with melting points lower than those of the materials forming the resistor unit and is connected with the other welding point piece and the middle piece. By means of the connecting unit, the resistor unit and the circuit-breaking safety unit which are connected in series and conducted, when the resistor unit is overheated, the circuit-breaking safety unit can be fused by reaching a melting point in advance, the situation that the element temperature is too high is avoided, and the overall safety performance of an electrical product applying the resistor element is improved.
Description
Technical field
The utility model relates to a kind of resistive element, particularly relates to a kind of resistive element with auto-cutout function.
Background technology
Consult Fig. 1, existing resistive element 9 comprises the solid welding cap 93 that a ceramic rod 91, alloy lead wire 92, two be wound on this ceramic rod 91 is sheathed on this ceramic rod 91 opposite end, and the insulating barrier 94 of this ceramic rod 91 coated, this alloy lead wire 92 and part solid welding cap 93, the opposite end of this alloy lead wire 92 is welded on described solid welding cap 93 respectively, described solid welding cap 93 also weldering sticks in a circuit (scheming not shown), provides the preset resistance needed for this circuit.In a general case, when electric current is by this resistive element 9, namely use as resistance because of the resistance of this alloy lead wire 92; When current is excessive, this alloy lead wire 92 can fuse because of overheated, and uses as the fuse of whole circuit in addition.
Because the fusing point of this alloy lead wire 92 of existing resistive element 9 is usually between 900 degree to 1500 degree, so when electric current is small size overcurrent, estimate that this alloy lead wire 92 used as fuse is not according to the fusing of expection, but constantly generate heat, thus temperature arround causing is too high and cause damage to other electronic components, even cause safety problem.
Therefore, existing resistive element 9 needs to improve, to overcome the problems of excessive heat of existing resistive element 9 when small size overcurrent.
Summary of the invention
The purpose of this utility model is the resistive element providing the small size overcurrent of a kind of electric current and adstante febre meeting auto-cutout.
The utility model resistive element comprises a long strip type and is selected from the matrix, that insulating material forms and is arranged at a linkage unit, a resistance unit on this matrix and an open circuit security unit.
This linkage unit is selected from conductor material and forms and comprise the solder joint part that two are placed on this matrix opposite end, and one to be separated by liftoff mid-of being arranged on this matrix with described solder joint part, one of them this solder joint part, this mid-with another this solder joint part, this matrix area is separated out a resistance area, an and Temperature protection district.
The material that this resistance unit is selected from predetermined resistance is formed, and is arranged at the resistance area of this matrix and opposite end is connected with one of them this solder joint part and this mid-respectively.
This open circuit security unit is selected from fusing point and forms lower than the conductor material of the fusing point of the constituent material of this resistance unit, is arranged at the Temperature protection district of this matrix and opposite end is connected with this another solder joint part and this mid-respectively.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, aforementioned resistive element, wherein this resistance unit comprise a spooling in this matrix and opposite end respectively with one of them this solder joint part and this mid-alloy wire be connected.
Preferably, aforementioned resistive element, wherein this open circuit security unit comprise a spooling in this matrix and opposite end respectively with another this solder joint part and this mid-Thermal Cutoffs be connected.
Preferably, aforementioned resistive element, wherein this mid-is a welding ring being sheathed on this matrix.
Preferably, aforementioned resistive element, wherein this resistive element also comprises a package tube, and a sealing compound, this encapsulation pipe box hold this matrix, this resistance unit, this open circuit security unit, this mid-, and the partial structure of described solder joint part, the bottom of these package tube two ends of this sealing compound set and described solder joint part.
Preferably, aforementioned resistive element, wherein this linkage unit also comprises two respectively from the outward extending wire of described solder joint part.
The beneficial effects of the utility model are: by means of being connected to this linkage unit and this resistance unit of formation series connection conducting and this open circuit security unit, and when the small size overcurrent of electric current, this open circuit security unit can prior to this resistance unit fusing and avoid this resistance unit persistent fever, and then arround causing other elements Yin Wendu too high and infringement situation occur.
Accompanying drawing explanation
Fig. 1 is a cutaway view, and existing resistive element is described; And
Fig. 2 is a cutaway view, and an embodiment of the utility model resistive element is described.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Consult Fig. 2, an embodiment of the utility model resistive element, comprise matrix 1, linkage unit 2, resistance unit 3, open circuit security unit 4, package tube 5 of a long strip type, and a sealing compound 6.
The matrix 1 of this long strip type is selected from insulating material and forms, in the present embodiment, and the ceramic pole of this matrix 1 to be specification be 2mm × 10mm, and the main composition material of this ceramic pole is aluminium oxide (Al
2o
3), silica (SiO
2), iron oxide (Fe
2o
3) wherein arbitrary, in addition, glass fibre is also one of insulating material that can adopt, and specification also visual demand adjustment.
This linkage unit 2 is selected from conductor material and forms, comprise two solder joint parts being generally placed on this matrix 1 opposite end in hat shape 21, one and described solder joint part 21 to be separated by liftoff mid-22 of being arranged on this matrix 1, and two respectively from the outward extending wire 23 of described solder joint part 21.For the ease of separating, in the following description, described solder joint part 21 is indicated with numbering 21a, 21b respectively.This solder joint part 21a, this mid-22 with this solder joint part 21b, this matrix 1 is separated out a resistance area 24, an and Temperature protection district 25.In this embodiment, this mid-22 is the welding ring being sheathed on this matrix 1, and other forms are not also limited to; Described solder joint part 21, the constituent material of mid-22 are selected from iron, copper, tin, silver, and these combinations, described wire 23 can select tinned wird, zinc-plated iron wire arbitrary, it selects only need consider whether can estimate that the resistance value provided has an impact, not as limit to overall electrical resistance element.
The material that this resistance unit 3 is selected from predetermined resistance is formed, and is arranged at the resistance area 24 of this matrix 1 and opposite end is connected with this solder joint part 21a and this mid-22 respectively.In more detail, in this embodiment, this resistance unit 3 comprise a spooling in this matrix 1 and opposite end respectively with this solder joint part 21a and this mid-22 alloy wire be connected 31, that is, this alloy wire 31 is electrically connected to each other with this solder joint part 21a and this mid-22, and this alloy wire 31 adopts the alloy of high-melting-point (temperature is between 900-1500 DEG C) to form, for the dominant resistance value of overall electrical resistance element is originated.
This open circuit security unit 4 is selected from fusing point and forms lower than the conductor material of the fusing point of the constituent material of this resistance unit 3, is arranged at the Temperature protection district 25 of this matrix 1 and opposite end is connected with this solder joint part 21b and this mid-22 respectively.More specifically, in this embodiment, this open circuit security unit 4 comprise a spooling in this matrix 1 and opposite end respectively with this solder joint part 21b and this mid-22 Thermal Cutoffs be connected 41, that is, this Thermal Cutoffs 41 is electrically connected to each other with this solder joint part 21b and this mid-22, makes the Thermal Cutoffs 41 of the alloy wire 31 of this resistance unit 3 and this open circuit security unit 4 be formed by means of described solder joint part 21 connect with this mid-22.In addition, in this embodiment, this Thermal Cutoffs 41 adopts the alloy of low melting point (being not more than 300 DEG C) to form.
This package tube 5 cover hold this matrix 1, this resistance unit 3, this open circuit security unit 4, this mid-22, and the partial structure of described solder joint part 21, more specifically, in this embodiment, this package tube 5 is the long straight tubes of hollow coordinating this matrix 1 shape, constituent material is pottery, and/or plastics, specification is 4.0mm × 10.5mm, and its pipe thickness is 0.5mm, but when practical application, must adjust depending on the specification of demand and this matrix 1.Bottom these these package tube 5 two ends of sealing compound 6 set and described solder joint part 21, be placed in this matrix 1 in this package tube 5, this resistance unit 3, this open circuit security unit 4, the component such as this mid-22 with seal protection.When electric current is by this resistance unit 3, this open circuit security unit 4, the heat that this resistance unit 3 produces, can be limited in package tube 5, with other electron component arround tentatively protecting by the impact that the utility model resistive element heats up.
The utility model resistive element is being applied in circuit, when current stabilization is passed through, because the resistance of the alloy wire 31 of this resistance unit 3 is much larger than the resistance of the Thermal Cutoffs 41 of this open circuit security unit 4, therefore the resistance of the Thermal Cutoffs 41 of this open circuit security unit 4 negligible, and use as resistance with the alloy wire 31 of this resistance unit 3; Especially, when the small size overcurrent of electric current, because the fusing point of the Thermal Cutoffs 41 of this open circuit security unit 4 is far below the alloy wire 31 of this resistance unit 3, so this Thermal Cutoffs 41 can fuse in advance when this alloy wire 31 not yet reaches high temperature, and make whole circuit breaker, and then make the utility model resistive element can not affect because the alloy wire 31 of this resistance unit 3 is overheated arround other electronic component.
What remark additionally is, the utility model resistive element also can in this resistance area 24 coating resin, this Temperature protection district 25 is coated with flux, and then guarantee when the small size overcurrent of electric current, the heat energy of this alloy wire 31 of effective isolation outwards transmits, meanwhile, guarantee that this Thermal Cutoffs 41 first fuses than this alloy wire 31.
The utility model resistive element can also apply semi-automatic volume production processing procedure, prior on this matrix 1 of pole shape sheathed this mid-22; Then at sheathed two the solder joint parts 21 of the two ends of this matrix 1 difference, and described wire 23 is made to be welded on described solder joint part 21 respectively; Afterwards, then in the resistance area 24 of this matrix 1, be wound around this alloy wire 31 with machine automatic job, and this alloy wire 31 opposite end is welded on this solder joint part 21a and this mid-22 respectively; Then set temperature fuse 41 on this mid-22 and this solder joint part 21b; Finally, this resistance unit 3 is coated with several coating (scheming not shown) as purposes such as fire prevention, heat radiations, and be coated with fluxing resin on this open circuit security unit 4 after, get final product sheathed this package tube 5 upper, and use bottom these these package tube 5 two ends of sealing compound 6 set and described solder joint part 21, manufacture in the simple and industrial production mode that automaticity is high.
In sum, the resistance that the utility model resistive element provides circuit predetermined with this resistance unit 3, and coordinate this open circuit security unit 4 when small size overcurrent, fuse in advance in this resistance unit 3 in advance and form open circuit, avoid this resistance unit 3 temperature too high and the normal operation of other electronic components arround impact, the existing resistive element 9 (see Fig. 1) of certain improvement is when small size overcurrent, this alloy lead wire 92 constantly heats up and does not fuse, arround causing, element is because of overheated impaired problem, successfully solves security concerns.
Claims (6)
1. a resistive element, is characterized in that: comprise:
The matrix of a long strip type, is selected from insulating material and forms;
A linkage unit, be selected from conductor material form and comprise the solder joint part that two are placed on this matrix opposite end, and one to be separated by liftoff mid-of being arranged on this matrix with described solder joint part, one of them this solder joint part, this mid-with another this solder joint part, this matrix area is separated out a resistance area, an and Temperature protection district;
A resistance unit, the material being selected from predetermined resistance is formed, and is arranged at the resistance area of this matrix and opposite end is connected with one of them this solder joint part and this mid-respectively; And
An open circuit security unit, is selected from fusing point and forms lower than the conductor material of the fusing point of the constituent material of this resistance unit, is arranged at the Temperature protection district of this matrix and opposite end is connected with another this solder joint part and this mid-respectively.
2. resistive element according to claim 1, is characterized in that: this resistance unit comprise a spooling in this matrix and opposite end respectively with one of them this solder joint part and this mid-alloy wire be connected.
3. resistive element according to claim 1, is characterized in that: this open circuit security unit comprise a spooling in this matrix and opposite end respectively with another this solder joint part and this mid-Thermal Cutoffs be connected.
4. resistive element according to claim 1, is characterized in that: this mid-is a welding ring being sheathed on this matrix.
5. resistive element according to claim 1, it is characterized in that: this resistive element also comprises a package tube, and a sealing compound, this encapsulation pipe box hold this matrix, this resistance unit, this open circuit security unit, this mid-, and the partial structure of described solder joint part, the bottom of these package tube two ends of this sealing compound set and described solder joint part.
6. resistive element according to claim 5, is characterized in that: this linkage unit also comprises two respectively from the outward extending wire of described solder joint part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104208650 | 2015-06-01 | ||
| TW104208650U TWM513444U (en) | 2015-06-01 | 2015-06-01 | Resistor elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792274U true CN204792274U (en) | 2015-11-18 |
Family
ID=54532274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520495422.0U Expired - Fee Related CN204792274U (en) | 2015-06-01 | 2015-07-10 | Resistance element |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204792274U (en) |
| TW (1) | TWM513444U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI637420B (en) * | 2017-03-30 | 2018-10-01 | 第一電阻電容器股份有限公司 | Anti-surge wire wound low temperature fuse resistor and manufacturing method thereof |
-
2015
- 2015-06-01 TW TW104208650U patent/TWM513444U/en not_active IP Right Cessation
- 2015-07-10 CN CN201520495422.0U patent/CN204792274U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TWM513444U (en) | 2015-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20200710 |