CN204480828U - High-power non-inductive ohmic load - Google Patents
High-power non-inductive ohmic load Download PDFInfo
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- CN204480828U CN204480828U CN201520229397.1U CN201520229397U CN204480828U CN 204480828 U CN204480828 U CN 204480828U CN 201520229397 U CN201520229397 U CN 201520229397U CN 204480828 U CN204480828 U CN 204480828U
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Abstract
High-power non-inductive ohmic load, comprise metallic cavity, described metallic cavity is made up of the resistance chamber sealed and the cooling chamber be positioned at below resistance chamber, at least one resistor is provided with in described resistance chamber, described resistance chamber outer surface is provided with the load electrode of contact resistance device, is filled with insulating oil, is also provided with chilled(cooling) water return (CWR) in described cooling chamber in described resistance chamber, cooling chamber surface is provided with import and the outlet of chilled(cooling) water return (CWR), and described resistor has the cavity running through resistor body.Adopt high-power non-inductive ohmic load described in the utility model, resistance value is stablized, and power capacity is large, and resistance loop inductance is little, is especially suitable for the power termination of High-Voltage Experimentation and equipment, and the utility model structure is simple, and the cost of material is low, is convenient to manufacture and use.
Description
Technical field
The utility model belongs to electronic devices and components field, relates to ohmic load, particularly a kind of high-power non-inductive ohmic load.
Background technology
Resistor is generally directly called resistance in daily life.Be a current limiting element, connect by resistance in circuit, the resistance of resistor is fixing is generally two pins, and it can the size of current on its institute's chord road of restricted passage.Resistance is unalterable is called fixed resistor.What resistance was variable is called potentiometer or variable resistance.Desirable resistor is linear, is namely directly proportional to additional instantaneous voltage by the transient current of resistor.
Metal film resistor is the one in resistor, is on porcelain tube, to plate layer of metal form, by the method for vacuum evaporation, alloy material evaporation is surperficial in ceramic rod skeleton.Metalfilmresistor precision is high, good stability, noise, and temperature coefficient is little, adopts in a large number in instrument and meter and communication apparatus.
Along with the maturation of high-power electric and electronic technology and the needs of power system development, need in increasing occasion to use high-power resistor, now widely used high-power liquid cooling resistor is all directly be immersed in cooling fluid, the chemical reaction such as easily to ionize, get rusty when resistance wire passes into long-time running after electric current, greatly have impact on the reliability of resistance and circulation cooling circuit, causing puncturing affects resistive performance and useful life.
Utility model content
For the high-power high voltage resistance cooling effect overcoming prior art is poor, easily heating causes puncturing the technological deficiency declined with the life-span, the utility model discloses a kind of high-power non-inductive ohmic load.
High-power non-inductive ohmic load described in the utility model, comprise metallic cavity, described metallic cavity is made up of the resistance chamber sealed and the cooling chamber be positioned at below resistance chamber, at least one resistor is provided with in described resistance chamber, described resistance chamber outer surface is provided with the load electrode of contact resistance device, insulating oil is filled with in described resistance chamber, also chilled(cooling) water return (CWR) is provided with in described cooling chamber, cooling chamber surface is provided with import and the outlet of chilled(cooling) water return (CWR), and described resistor has the cavity running through resistor body.
Preferably, described resistor is porcelain tube noninductive resistance.
Preferably, described resistor has multiple, and the electrode of each resistor is positioned at the end of resistor.
Further, multiple described resistor be arranged in parallel, and spacing is 1-5 centimetre.
Preferably, described metallic cavity material is aluminium section bar.
Preferably, also arrange the forced air cooling device that promising chilled(cooling) water return (CWR) carries out cooling in described cooling chamber, described cooling chamber has thermal window.
Preferably, described metallic cavity is made up of sidewall, afterbody cover plate and top blind flange, and described afterbody cover plate and top blind flange have to lower extension, described to lower extension covering cooling chamber end surface.
Further, described load electrode is the bolt being positioned at top blind flange and the nut coordinated with bolt.
Preferably, described chilled(cooling) water return (CWR) comprises the cooling water pipe that many run through cooling chamber, and two ports of cooling water pipe are all connected with the import of chilled(cooling) water return (CWR) and outlet conduit respectively.
Adopt high-power non-inductive ohmic load described in the utility model, resistance value is stablized, and power capacity is large, and resistance loop inductance is little, is especially suitable for the power termination of High-Voltage Experimentation and equipment, and the utility model structure is simple, and the cost of material is low, is convenient to manufacture and use.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment structural representation of high-power non-inductive ohmic load described in the utility model;
In figure, Reference numeral name is called: the import 8-load electrode of 2-cooling chamber 3-cooling water pipe 4-top blind flange 5-sidewall 6-resistor 7-chilled(cooling) water return (CWR), 1-resistance chamber.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
High-power non-inductive ohmic load described in the utility model, comprise metallic cavity, described metallic cavity is made up of the resistance chamber 1 sealed and the cooling chamber 2 be positioned at below resistance chamber, at least one resistor 6 is provided with in described resistance chamber, described resistance chamber outer surface is provided with the load electrode 8 of contact resistance device, insulating oil is filled with in described resistance chamber, also chilled(cooling) water return (CWR) is provided with in described cooling chamber, cooling chamber surface is provided with import 7 and the outlet of chilled(cooling) water return (CWR), and described resistor has the cavity running through resistor body.
High-power non-inductive ohmic load described in the utility model is applied to high-power occasion usually, use as ohmic load, be that resistor in resistance chamber applies high pressure by load electrode during use, resistance chamber 1 is full of the seal chamber of insulating oil, insulating oil improves the withstand voltage degree between resistor 6, be full of by insulating oil equally in the cavity of resistor, not only improve withstand voltage, simultaneously can speedup resistor heat radiation itself.
Resistance chamber 1 and cooling chamber 2 are the cavity of metal material, and resistance heating can by metallic cavity Quick diffusing, during use, cooling water passes into chilled(cooling) water return (CWR), walk heat from resistance chamber bottom belt, reduce the temperature in resistance chamber, performance is more stable in the course of the work to make resistor.Resistor can adopt noninductive or that inductance is very little resistance, and such as porcelain tube is the noninductive resistance of main body, reduces load issuable eddy current field under big current high power.
A kind of preferred implementation is the forced air cooling device being set to carry out cooling in chilled(cooling) water return (CWR) in cooling chamber, such as exhaust blower etc., some thermal windows can be offered on cooling chamber simultaneously, forced air cooling device is utilized to carry out air cycle heat radiation to chilled(cooling) water return (CWR), heat in water is released in air by the mode of forced air cooling, further increases the cooling effect of chilled(cooling) water return (CWR).
Chilled(cooling) water return (CWR) can comprise the cooling water pipe 3 that many run through cooling chamber, and two ports of cooling water pipe 3 are all connected with the import 7 of chilled(cooling) water return (CWR) and outlet conduit respectively, to increase heat exchange power, improve heat transfer effect.In embodiment such as shown in Fig. 1, have the cooling water pipe 3 that two parallel in cooling chamber, the entrance of cooling water pipe is all connected with the import of chilled(cooling) water return (CWR).
Cavity can adopt aluminium section bar manufacture, aluminium section bar low price and lighter in weight, reduces the overall weight of ohmic load, is convenient to a dead lift in the lab.
Resistor 6 can adopt the form of multiple parallel connection, the electrode of resistor 6 is positioned at the end of resistor, the parallel placement of resistor, facilitate the electrode of each resistor self to be all connected with load electrode electricity, the application mode of multiple capacitor in parallel can significantly improve the rated power of ohmic load.
When adopting the form of multiple resistors in parallel, the spacing between the parallel placement of resistor 6 is preferably arranged between 1-5 centimetre, reduces gap as far as possible, reduce resistance chamber size while ensureing voltage endurance capability.
In embodiment as shown in Figure 1, metallic cavity is made up of sidewall 5, afterbody cover plate and top blind flange 4, described afterbody cover plate and top blind flange have to lower extension, described to lower extension covering cooling chamber end surface, cover plate covers resistance chamber 1 and cooling chamber 2 simultaneously, simplify design, adopt the structure of this sidewall and cover plate to make whole high-power non-inductive ohmic load simple for structure, be convenient to dismounting and maintenance.
Adopt three in-parallel resistors in Fig. 1, the electrode of resistor ends is all connected with the load electrode be positioned on cover plate, and in Fig. 1, load electrode adopts the form of bolt and nut, facilitates outer lead to be connected with it.
Previously described is each preferred embodiment of the present utility model, preferred implementation in each preferred embodiment is if not obviously contradictory or premised on a certain preferred implementation, each preferred implementation can stack combinations use arbitrarily, design parameter in described embodiment and embodiment is only the utility model proof procedure in order to clear statement utility model people, and be not used to limit scope of patent protection of the present utility model, scope of patent protection of the present utility model is still as the criterion with its claims, the equivalent structure change that every utilization specification of the present utility model and accompanying drawing content are done, in like manner all should be included in protection range of the present utility model.
Claims (9)
1. high-power non-inductive ohmic load, it is characterized in that, comprise metallic cavity, described metallic cavity is made up of the resistance chamber (1) sealed and the cooling chamber (2) be positioned at below resistance chamber, at least one resistor (6) is provided with in described resistance chamber, described resistance chamber outer surface is provided with the load electrode (8) of contact resistance device, insulating oil is filled with in described resistance chamber, also chilled(cooling) water return (CWR) is provided with in described cooling chamber, cooling chamber surface is provided with import and the outlet of chilled(cooling) water return (CWR), and described resistor has the cavity running through resistor body.
2. high-power non-inductive ohmic load as claimed in claim 1, it is characterized in that, described resistor is porcelain tube noninductive resistance.
3. high-power non-inductive ohmic load as claimed in claim 1, it is characterized in that, described resistor (6) has multiple, and the electrode of each resistor is positioned at the end of resistor.
4. high-power non-inductive ohmic load as claimed in claim 3, it is characterized in that, multiple described resistor (6) be arranged in parallel, and spacing is 1-5 centimetre.
5. high-power non-inductive ohmic load as claimed in claim 1, it is characterized in that, described metallic cavity material is aluminium section bar.
6. high-power non-inductive ohmic load as claimed in claim 1, it is characterized in that, also arrange the forced air cooling device that promising chilled(cooling) water return (CWR) carries out cooling in described cooling chamber, described cooling chamber has thermal window.
7. high-power non-inductive ohmic load as claimed in claim 1, it is characterized in that, described metallic cavity is made up of sidewall (5), afterbody cover plate and top blind flange (4), and described afterbody cover plate and top blind flange (4) have to lower extension, described to lower extension covering cooling chamber end surface.
8. high-power non-inductive ohmic load as claimed in claim 7, it is characterized in that, described load electrode is the bolt being positioned at top blind flange and the nut coordinated with bolt.
9. high-power non-inductive ohmic load as claimed in claim 1, it is characterized in that, described chilled(cooling) water return (CWR) comprises the cooling water pipe (3) that many run through cooling chamber, and two ports of cooling water pipe (3) are all connected with the import (7) of chilled(cooling) water return (CWR) and outlet conduit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229397.1U CN204480828U (en) | 2015-04-16 | 2015-04-16 | High-power non-inductive ohmic load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229397.1U CN204480828U (en) | 2015-04-16 | 2015-04-16 | High-power non-inductive ohmic load |
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| Publication Number | Publication Date |
|---|---|
| CN204480828U true CN204480828U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520229397.1U Expired - Fee Related CN204480828U (en) | 2015-04-16 | 2015-04-16 | High-power non-inductive ohmic load |
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| Country | Link |
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| CN (1) | CN204480828U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242297A (en) * | 2017-11-28 | 2018-07-03 | 广东福德电子有限公司 | A kind of belt water-cooled resistor |
| CN109581244A (en) * | 2018-10-25 | 2019-04-05 | 中国人民解放军63706部队 | High-power portable noninductive load case |
-
2015
- 2015-04-16 CN CN201520229397.1U patent/CN204480828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242297A (en) * | 2017-11-28 | 2018-07-03 | 广东福德电子有限公司 | A kind of belt water-cooled resistor |
| CN109581244A (en) * | 2018-10-25 | 2019-04-05 | 中国人民解放军63706部队 | High-power portable noninductive load case |
| CN109581244B (en) * | 2018-10-25 | 2021-03-30 | 中国人民解放军63706部队 | High-power portable noninductive load box |
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| 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: 20150715 Termination date: 20210416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |