CN204066913U - A kind of novel noninductive cement resistor - Google Patents
A kind of novel noninductive cement resistor Download PDFInfo
- Publication number
- CN204066913U CN204066913U CN201420493693.8U CN201420493693U CN204066913U CN 204066913 U CN204066913 U CN 204066913U CN 201420493693 U CN201420493693 U CN 201420493693U CN 204066913 U CN204066913 U CN 204066913U
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- metal lead
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Abstract
The utility model discloses a kind of novel noninductive cement resistor, comprise ceramic framework, sheet metal and metal lead wire, described ceramic framework is cuboid, be provided with sheet metal in pottery framework and encapsulated by insulating heat-conduction material, pottery framework side is provided with two metal lead wires, two metal lead wires weld with sheet metal respectively, and the ceramic framework between two metal lead wires is provided with groove.The utility model makes simple, and thermal diffusivity is good, long service life, can better meet the demand of user to high-quality resistor.
Description
Technical field
The utility model relates to a kind of resistor, especially a kind of novel noninductive cement resistor.
Background technology
Cement resistor product normally arranges wire-wound resistor or metal oxidation resistance by porcelain shell, then is sealed to form with insulative potting material, and it has heat-resisting, the advantage such as moisture-proof and low price, can be applicable to some power and the larger occasion of electric current.But the cement resistor volume of this structure is comparatively large, there is certain inductance, thus limits its scope of application.Authorization Notice No. is that the patent of CN201893210U provides a kind of metal piece noninductive cement resistor, comprise ceramic package, the pellet resistance chip suppressed by iron aluminum chromium band, to be connected with resistance chip and to be piercing in the lead-in wire of ceramic package, and resistance chip is encapsulated in Ceramic shell internal by cement slurry, this product has the advantage that resistance is low, inductance is low, be applicable to stereo set, but this product structure is comparatively complicated, do not take cooling measure, long-time use can cause resistive element overheated, affects useful life.
Summary of the invention
For the deficiencies in the prior art, the utility model provide a kind of make simple, thermal diffusivity is good, the novel noninductive cement resistor of long service life.
The technical solution of the utility model is: a kind of novel noninductive cement resistor, comprise ceramic framework, sheet metal and metal lead wire, it is characterized in that: described ceramic framework is cuboid, be provided with sheet metal in pottery framework and encapsulated by insulating heat-conduction material, pottery framework side is provided with two metal lead wires, two metal lead wires weld with sheet metal respectively, and the ceramic framework between two metal lead wires is provided with groove.
Curved, the trapezoidal or rectangle of described groove.
The beneficial effects of the utility model are:
1. make simple, cost-saving, by arranging groove in ceramic framework, expanding heat-dissipating space when cement resistor uses, enhancing heat dispersion, thus extend the useful life of cement resistor.
2., by being provided with the low sheet metal of good stability, resistance and filling insulating heat-conduction material in ceramic framework, reduce inductance, reduce small product size, simultaneously safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of novel noninductive cement resistor described in the utility model.
In figure, 1-pottery framework, 2-insulating heat-conduction material, 3-sheet metal, 4-metal lead wire, 5-groove.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, a kind of novel noninductive cement resistor, comprise ceramic framework 1, sheet metal 3 and metal lead wire 4, pottery framework 1 is in cuboid, pottery framework 1 inside is provided with sheet metal 3 and is packaged with insulating heat-conduction material 2, sheet metal 3 is made up of the alloy of iron or aluminum metal, pottery framework 1 side is provided with two tinned wirds, two tinned wirds weld with sheet metal 3 respectively, ceramic framework 1 between two metal lead wires 4 is provided with groove 5, curved, the trapezoidal or rectangle of groove 5, in the present embodiment, groove 5 is trapezoidal.
As shown in Figure 1, the utility model by arranging groove 5 in ceramic framework 1, and when being installed on circuit board, air flowing is convenient, accelerates radiating rate, and temperature stability when making work on sheet metal 3 is good, thus makes product longer service life; Replacing traditional wire-wound resistor by arranging the low sheet metal of resistance 3 in ceramic framework 1 simultaneously, reducing inductance and reducing small product size; Then by filling insulating heat-conduction material 2 in ceramic framework 1, further increasing heat radiation and security performance.Therefore, the utility model is reasonable in design, makes simple, cost-saving, can better meet the demand of user to high-quality resistor.
What describe in above-described embodiment and specification just illustrates principle of the present utility model and most preferred embodiment; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
Claims (2)
1. a novel noninductive cement resistor, comprise ceramic framework, sheet metal and metal lead wire, it is characterized in that: described ceramic framework is cuboid, be provided with sheet metal in pottery framework and encapsulated by insulating heat-conduction material, two metal lead wires weld with sheet metal respectively, and the ceramic framework between two metal lead wires is provided with groove.
2. novel noninductive cement resistor according to claim 1, is characterized in that: curved, the trapezoidal or rectangle of described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493693.8U CN204066913U (en) | 2014-08-29 | 2014-08-29 | A kind of novel noninductive cement resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493693.8U CN204066913U (en) | 2014-08-29 | 2014-08-29 | A kind of novel noninductive cement resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066913U true CN204066913U (en) | 2014-12-31 |
Family
ID=52208373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420493693.8U Expired - Fee Related CN204066913U (en) | 2014-08-29 | 2014-08-29 | A kind of novel noninductive cement resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066913U (en) |
-
2014
- 2014-08-29 CN CN201420493693.8U patent/CN204066913U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20141231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |