CN86204476U - Radiator-type high-duty resistor - Google Patents
Radiator-type high-duty resistor Download PDFInfo
- Publication number
- CN86204476U CN86204476U CN 86204476 CN86204476U CN86204476U CN 86204476 U CN86204476 U CN 86204476U CN 86204476 CN86204476 CN 86204476 CN 86204476 U CN86204476 U CN 86204476U CN 86204476 U CN86204476 U CN 86204476U
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- ceramic substrate
- resistor
- resistance
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- described resistor
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Abstract
The utility model provides a high-duty resistor (the rated wattage is at least 40W, the resistance ratio ranges from 1 M omega to 400 M omega, the volume is not larger than 60*60*72 mm+[3]). Because the resistance slurry of Ru (44th element) series and radiator-mode structure are adopted, a typical resistor can stably operate for a long time without any cooling means in room temperature and in high voltage which is not lower than 40KV. When forced air cooling is adopted, the rated power can be improved nearly 2 times; in principle, so long as the volume is increased, a high-duty resistor whose working voltage is higher than 40KV, and whose power is larger than 40W can be manufactured.
Description
The utility model is the high-voltage power resistor about being convenient to dispel the heat.
Some equipment needs the high-voltage power resistor.For example, color television set is done with kickback transformer just needs this quasi-resistance device on the equipment of reliability test, participates in test to replace picture tube as the high-voltage load of kickback transformer.
Usually, high voltage resistor is because power less (for example, RHY-35: operating voltage 35KV, power 5W; RI8-5: operating voltage 50KV, power 5W), will be under high voltage, powerful condition, steady operation for a long time just must be (being coated with full silicone grease (preventing corona, favourable heat radiation) for) ， And safe in utilization in the insulation booth of packing into after some resistor in series, And connection even the series-parallel connection.But corona easily takes place in gathering of the seepage of the back silicone grease of long period use, dust between the resistor under the high pressure, thereby influences the operate as normal of equipment.In addition, the insulation booth volume is bigger, and many resistors are concentrated when using, and heat radiation also is distinct issues.
The purpose of this utility model is to provide a kind of improved high-voltage power resistor, it easily dispel the heat and also volume little.
The resistor that the utility model proposes, mainly comprise the ceramic substrate (1) that is printed on resistive conductor and electrode, and the ceramic substrate (2) that does not have printing, it is characterized in that the one side that said ceramic substrate (1) is printed on resistive conductor and electrode is bonded into a resistance unit with silicone rubber adhesive and ceramic substrate (2), is fixed together several (deciding according to operating voltage, rated power) resistance units then.
Accompanying drawing is the schematic diagram that the whole resistor A-A of a kind of embodiment of the present utility model analyses and observe.
The resistor of the utility model regulation: go up seal electrode pattern with electrode slurry elder generation at ceramic substrate (1), sintering then, print resistive conductor (figure of resistive conductor designs by desired resistance and operating voltage) with resistance slurry again, through resistive conductor sintering And through resistance measure qualified after, bonding with silicone rubber adhesive and ceramic substrate (2), wipe the adhesive, the horizontal positioned that are extruded a little behind the pressure, do not add any pressure at room temperature through spontaneous curing in 24 hours, be bonded into a resistance unit.Resistive conductor is sandwiched between two layers of ceramic substrate like this, and adhesive seal is arranged all around, has avoided the influence of dust, moisture and all gases in the air, has both guaranteed the safety used, has improved the stability of resistance value again.In addition, again porcelain tube (3) is bonded in the fixing hole of ceramic substrate (2) with adhesive.(with ceramic substrate (1), (2) are bonding carries out simultaneously, after solidifying in 24 hours, can assemble).
Adopt " heat radiator type " structure on the structure, be to be separated by porcelain tube (3) between the resistance unit, four holes on the resistance unit (12,13,14,15) wear metal screw (9), overlap buffer gasket (7) on the screw rod, fixing with nut (8), to guarantee that stable structure and fixing spacing are arranged.Because resistance unit fully contacts with air, whole resistance constitutes a radiator (seeing accompanying drawing).
The resistance unanimity of resistance unit, whole resistor is welded the resistance unit series connection with lead (6), and lead puts porcelain tube (4) outward to guarantee safety.
It should be noted that especially between the resistance unit that not point to point with wire bonds must be stained with the solid porcelain knob (5) with porcelain tube (4) similar external dimensions.
Because the resistance unanimity of resistance unit, thereby guaranteed the operating voltage on the every resistance unit and born power also consistent.
The maximum operating voltage of resistor and maximum are born power and are provided by following formula:
(1) maximum operating voltage=unit length withstand voltage * resistive conductor length
(2) maximum is born power=unit are and is born Power x resistive conductor area (refer to every resistance unit, and resistive conductor thickness being 20 μ) * resistance unit number
(it is definite by resistance slurry that unit length is withstand voltage, unit are is born power)
When using, resistor require resistance unit perpendicular to the ground.
Can adopt cheap ceramic material as ceramic substrate, porcelain tube, porcelain knob, for example, alumina ceramic.Ceramic substrate can or roll the film punching out with the commonly used hot die-casting molding in present technique field and form.Electrode slurry can be with known palladium-silver slurry, and resistance slurry can be with No. 44 element of Ru() be resistance slurry etc.
Technical solutions of the utility model can produce under 〉=40KV high pressure, the high-voltage power resistance (rated power 〉=40W, Standard resistance range are 1M Ω-400M Ω) of long-time steady operation.
Further describe the utility model by the following examples, but the utility model is not subjected to the restriction of this embodiment.
Embodiment
What accompanying drawing was showed is a kind of embodiment of the present utility model: ceramic substrate (1), ceramic substrate (2) are to use 95% alumina ceramic, and by method injection moulding well-known in the art, sinter molding, it is of a size of 60 * 60 * 1(mm).Two apertures (10 of the one side of ceramic substrate (1), 11) locate earlier with palladium-silver slurry (D-4344 that the clear flourish chemical industrial company of Japan makes) seal electrode, sintering is (810 ℃～820 ℃ then, be incubated 5～10 minutes), burning rear electrode thickness is 12 μ, be resistance slurry (R-7610 with Ru again, R-7620, manufacturer is the same) the seal resistive conductor, dry (150 ℃ through horizontal positioned again after 10 minutes, 15 minutes) (720 ℃～790 ℃ of sintering then, be incubated 8～10 minutes), burning back resistive conductor thickness is 20 μ, after the resistance measurement is qualified, with silicone rubber adhesive (Jiangsu Province's Wuxi County evolution factory products, commodity are called tin light board HC-703 adhesive) be coated in outside ceramic substrate (1) resistive conductor and the electrode district and enclose, ceramic substrate (2) is placed on the ceramic substrate (1), the alignment apertures position, behind the pressure, wipe the HC-703 adhesive that is extruded, horizontal positioned a little with cloth, plus-pressure not, at room temperature, be bonded into a resistance unit through spontaneous curing in 24 hours.Then, porcelain tube (3) is bonded in four holes (12,13,14,15) of ceramic substrate (2) (condition of cure is the same) by the HC-703 adhesive.On two apertures of ceramic substrate (1) electrode, 8 resistance units series connection welding, lead puts porcelain tube (4) outward to employing present technique field welding method commonly used known wire bonds.At the solid porcelain knob (5) that is not stained with between two apertures between the resistance unit with porcelain tube (4) similar external dimensions with wire bonds.At last, pass four fixing holes (12,13,14,15) on the resistance unit, overlap buffer gasket (7) on the screw rod with screw rod (9), fixing with nut (8).Screw rod, nut, packing ring all are standard components, can buy from the market.Two electrode holes are made resistor leading foot solder joint (10) on two layers of ceramic substrate of whole resistor outermost, and two apertures are coated with full HC-703 adhesive (11) in addition.
With the resistor that the utility model is made, the operating voltage of getting every resistance unit is 5KV～5.3KV, and bearing power is 5W～5.5W.With 8 resistance units is example, can be made into operating voltage 〉=40KV(test voltage 50KV), the high-voltage power resistor of rated power 〉=40W, resistance is 40M Ω, its volume is not more than 60 * 60 * 72mm
3Because using Ru is resistance slurry, the resistor of making has good temperature characterisitic (in 25 ℃～125 ℃ scopes ,≤400ppm/ ℃).At room temperature (20 ℃～22 ℃) need not any cooling way, and this resistor is pressed 90% continuous operation 960 hours of rated power, and surface temperature is not higher than 94 ℃.If use air blast cooling, the bearing power and can improve nearly 1 times of every resistor.
Characteristics of the present utility model are that shape, structure and manufacture process and common bar-shaped (tubulose) resistor of this resistor is all inequality.If the lengthening resistive conductor can be made the higher resistor of operating voltage (but not increasing power).Can also produce operating voltage and be higher than 40KV, rated power high-voltage power resistor as long as increase volume (increase the area of ceramic substrate (1), (2), perhaps increase resistance unit) in principle greater than 40W.
Claims (7)
1, a kind of resistor of easy heat radiation, comprising the ceramic substrate that is printed on resistive conductor and electrode [1], and the ceramic substrate [2] that does not have printing, it is characterized in that the one side that is printed on resistive conductor and electrode at said ceramic substrate [1] is bonded into a resistance unit with silicone rubber adhesive and ceramic substrate [2], between said resistance unit, separate And with screw rod [9], nut [8], packing ring [7], then several (deciding according to operating voltage, rated power) resistance units are fixed together with porcelain tube [3].
2,, it is characterized in that being provided with the aperture (10,11) of two printed electrodes at said ceramic substrate (1) according to the described resistor of claim 1.
3,, it is characterized in that the aperture of outside said ceramic substrate (2) is provided with two leads, applying mechanically according to the described resistor of claim 1.
4, according to the described resistor of claim 2, it is characterized in that the aperture at said two printed electrodes, they are positioned at the mid point on (1) two symmetrical limit of said ceramic substrate.
5, according to the described resistor of claim 3, it is characterized in that said two for the aperture of applying mechanically outside the leads, they are positioned at the mid point on (2) two symmetrical limits of said ceramic substrate.
6,, it is characterized in that being provided with four apertures (12,13,14,15) for stationary state at ceramic substrate of being said (1) and ceramic substrate (2) according to claim 1,2,3,4 or 5 described resistors.
7,, it is characterized in that they are positioned at four corners of said ceramic substrate (1) and ceramic substrate (2) at fixing four apertures (12,13,14,15) of usefulness of said four confessions according to the described resistor of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204476 CN86204476U (en) | 1986-06-28 | 1986-06-28 | Radiator-type high-duty resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204476 CN86204476U (en) | 1986-06-28 | 1986-06-28 | Radiator-type high-duty resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86204476U true CN86204476U (en) | 1987-04-22 |
Family
ID=4807534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86204476 Ceased CN86204476U (en) | 1986-06-28 | 1986-06-28 | Radiator-type high-duty resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86204476U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506913B (en) * | 2006-08-25 | 2011-08-10 | Abb技术有限公司 | A resistor for electric high-voltage apparatus and a method of mounting a resistor |
| CN103093908A (en) * | 2007-09-27 | 2013-05-08 | 韦沙戴尔电子公司 | Power resistor |
| CN109065308A (en) * | 2018-08-06 | 2018-12-21 | 中国振华集团云科电子有限公司 | A kind of TO-247 encapsulation power resistor manufacturing method |
-
1986
- 1986-06-28 CN CN 86204476 patent/CN86204476U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506913B (en) * | 2006-08-25 | 2011-08-10 | Abb技术有限公司 | A resistor for electric high-voltage apparatus and a method of mounting a resistor |
| CN103093908A (en) * | 2007-09-27 | 2013-05-08 | 韦沙戴尔电子公司 | Power resistor |
| CN103093908B (en) * | 2007-09-27 | 2017-04-26 | 韦沙戴尔电子公司 | Power resistor |
| CN109065308A (en) * | 2018-08-06 | 2018-12-21 | 中国振华集团云科电子有限公司 | A kind of TO-247 encapsulation power resistor manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |