CN207676748U - A kind of resistor integrally to radiate - Google Patents
A kind of resistor integrally to radiate Download PDFInfo
- Publication number
- CN207676748U CN207676748U CN201721690673.XU CN201721690673U CN207676748U CN 207676748 U CN207676748 U CN 207676748U CN 201721690673 U CN201721690673 U CN 201721690673U CN 207676748 U CN207676748 U CN 207676748U
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- resistive element
- resistor
- cooling fin
- alloy
- barrier layer
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Abstract
The utility model discloses a kind of resistor integrally to radiate, wherein radiator forms one with resistance, and includes two high heat conductions and the insignificant cooling fin of resistivity.By the way that the cooling fin of high heat-conductivity conducting is fitted in resistive element lower surface, while increasing resistor load power, cooling fin has the function of resistor connecting terminal, to produce the resistor that a kind of precision is high, power is big, simple for process, reliability and thermal stability are good.
Description
Technical field
The utility model is related to field of electrical components, especially a kind of resistor.
Background technology
In circuit operational process, temperature raising can cause the electric property of resistance to change, and then change resistance in electricity
Use state in road may seriously lead to circuit malfunction.It includes resistor electricity to influence the reason of resistor temperature increases mainly
Power generates heat and the heat-sinking capability of resistor.
Therefore need a kind of new technical solution to solve the above problems.
Utility model content
The purpose of this utility model is that：The utility model utilizes mounting technology, provide a kind of compact-sized miniaturization and
Reliability and the good resistor of thermal stability.
In order to achieve the above objectives, following technical solution can be used in the utility model resistor：
A kind of resistor integrally to radiate, it is characterised in that：Including flat resistive element, it is located at below resistive element simultaneously
It carries two cooling fins of resistive element, the barrier layer between two cooling fins, positioned at resistor side and be conductively connected
The alloy coating of cooling fin and resistive element；The cooling fin lateral surface covers conjunction simultaneously with the side of corresponding resistive element
Golden side coating makes the cooling fin and resistive element conductive contact, the lateral surface of another cooling fin and resistive element another
The same covering alloy side coating in side makes the cooling fin be connect with resistive element conductive contact；Barrier layer barrier cooling fin it
Between electrical conduction；The cooling fin is conductive material.
Advantageous effect：The resistor of the utility model disperses using heat sink and exports the heat of resistive element generation, increases
The big heat-sinking capability of entire resistor, load power greatly increase；As conductive material, conductive characteristic makes to dissipate another cooling fin sheet
Backing has the function of connecting terminal, and without being additionally that electrode is arranged in the resistor again, i.e. cooling fin plays heat dissipation simultaneously
With the dual function of electrode, keeps the resistor structure compact small and exquisite, meet the demand of miniaturization.
Description of the drawings
Fig. 1 is the cross section of resistor in embodiment；
Fig. 2 is the upward view of resistor in embodiment.
Specific implementation mode
The structure of this example of the utility model patent is further described below in conjunction with the accompanying drawings.
Incorporated by reference to Fig. 1 and Fig. 2, for the embodiment for the resistor that the utility model integrally radiates.
The resistor includes flat resistive element 11, positioned at 11 lower section of resistive element and carries two of resistive element and dissipates
Backing 31, the barrier layer 33 between two cooling fins 31；The cooling fin 31 is conductive material.The cooling fin lateral surface
Covering alloy side coating 22 makes the cooling fin and resistive element conductive contact simultaneously with the side of corresponding resistive element.It is another
The lateral surface of a cooling fin covering alloy same as another side of resistive element 11 side coating 22 makes the cooling fin and electricity
Resistance element conductive contact.The barrier layer 33 obstructs the electrical conduction between cooling fin 31, avoids causing between two cooling fins 31
Short circuit.In the present embodiment, the lower surface 13 of the resistive element 11 passes through adhesive 20 and cooling fin 31 and barrier layer 33
It is bonded.The material of the cooling fin 31 is selected as in fine copper, copper alloy, graphene, functional form polymer resin or nano material
One kind, can be used as conductive electrode while so as to high thermal conductivity, high heat-sinking capability characteristic, and due to dissipate
Backing 31 itself is located at integrally-built lower section, can be directly bonded with the conducting end in such as printed circuit board 65 and reach electricity
The effect of pole.The resistive element 11 need not be additionally that electrode is arranged in the resistor again in this way, i.e. cooling fin plays heat dissipation simultaneously
With the dual function of electrode, keeps the resistor structure compact small and exquisite, meet the demand of miniaturization.
The upper surface 12 of resistive element can be coated with coating material (not shown) to protect institute in electroplating process
State resistance element.
Radiator 30 and resistor 10 are bonded to each other the heat conduction path to be formed from resistor 10 to radiator 30.Due to work
The heat that resistor generates in engineering can reduce resistor itself by the higher radiator export of thermal conductivity and runaway
Temperature, to reduce the variation of resistance value.In the embodiment shown in figure 1, resistive element 11 can pass through 10 He of resistor
The adhesive 20 of high heat conduction and electrical isolation between radiator 30 is joined to cooling fin 31.In one embodiment, cooling fin
Upper surface 32 need to be fitted in resistive element lower surface 13 completely.
And can in this together it be illustrated by a variety of in the specific choice of above-mentioned each element：The resistive element 11 is gold
Belong to one kind in a resistive element, thick-film resistor, film resistor or metal foil.Coating 22 material in the alloy side is highly conductive
The silver-tin alloy of heat conduction, one kind of nichrome or silver paste.The material of the barrier layer 33 be paint vehicle or function epoxy resin, i.e.,
High heat conduction electrically insulating material.
Claims (6)
1. a kind of resistor integrally to radiate, it is characterised in that：Including flat resistive element, below the resistive element and hold
It carries two cooling fins of resistive element, the barrier layer between two cooling fins, positioned at resistor side and be conductively connected scattered
The alloy coating of backing and resistive element；The cooling fin lateral surface and the side of corresponding resistive element covering alloy simultaneously
Side coating makes the cooling fin and resistive element conductive contact, the lateral surface of another cooling fin and another side of resistive element
The same covering alloy side coating in face makes the cooling fin be connect with resistive element conductive contact；Between the barrier layer barrier cooling fin
Electrical conduction；The cooling fin is conductive material.
2. resistor according to claim 1, it is characterised in that：The resistive element is metal strip resistor element, thick film
One kind in resistance, film resistor or metal foil.
3. resistor according to claim 1, it is characterised in that：The alloy side coating material is silver-tin alloy, nickel
One kind of evanohm or silver paste.
4. resistor according to claim 3, it is characterised in that：The material of the barrier layer is paint vehicle or function asphalt mixtures modified by epoxy resin
Fat.
5. resistor according to claim 4, it is characterised in that：The material of the cooling fin be selected as fine copper, copper alloy,
One kind in graphene, functional form polymer resin or nano material.
6. resistor according to claim 1, it is characterised in that：The lower surface of the resistive element and cooling fin and barrier
Layer is bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721690673.XU CN207676748U (en) | 2017-12-07 | 2017-12-07 | A kind of resistor integrally to radiate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721690673.XU CN207676748U (en) | 2017-12-07 | 2017-12-07 | A kind of resistor integrally to radiate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676748U true CN207676748U (en) | 2018-07-31 |
Family
ID=62967845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721690673.XU Active CN207676748U (en) | 2017-12-07 | 2017-12-07 | A kind of resistor integrally to radiate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903938A (en) * | 2017-12-07 | 2019-06-18 | 南京萨特科技发展有限公司 | A kind of resistor integrally to radiate and manufacturing method |
| CN110459375A (en) * | 2019-06-05 | 2019-11-15 | 北京七一八友晟电子有限公司 | Low-resistance precision chip resistor and production method |
-
2017
- 2017-12-07 CN CN201721690673.XU patent/CN207676748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903938A (en) * | 2017-12-07 | 2019-06-18 | 南京萨特科技发展有限公司 | A kind of resistor integrally to radiate and manufacturing method |
| CN110459375A (en) * | 2019-06-05 | 2019-11-15 | 北京七一八友晟电子有限公司 | Low-resistance precision chip resistor and production method |
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