CN2297786Y - Contacting voltage regulator - Google Patents
Contacting voltage regulator Download PDFInfo
- Publication number
- CN2297786Y CN2297786Y CN 96216903 CN96216903U CN2297786Y CN 2297786 Y CN2297786 Y CN 2297786Y CN 96216903 CN96216903 CN 96216903 CN 96216903 U CN96216903 U CN 96216903U CN 2297786 Y CN2297786 Y CN 2297786Y
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- China
- Prior art keywords
- brush
- coil
- lining ring
- metal lining
- flour milling
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Abstract
The utility model relates to a novel contacting voltage regulator, which is on the structure basis of the original voltage regulator. The outside of an iron core is lined with a metal lining ring which is through insulating treatment and coils are directly and tightly wound at the outside of the metal lining ring. The coils of one side of the metal lining ring are made into a grinding surface and a brush contact can slide on the grinding surface. The middle of an electric brush is provided with a metal graphite; the two side of the metal graphite are provided with sandwich electrographite electric brushes which are inserted in cooling holes of the electric brush. The electric brush and the coil can be cooled directly; the utility model, without interturn short circuit current and local overheating, has the advantages of little heating, energy saving and long service life and the surface of the grinding surface copper can not be oxygenized.
Description
The utility model relates to a kind of annular variable-voltage transformer and contacts automatic voltage regulator and contact automatic voltage regulator and pressurizer with pressurizer, pillar with pressurizer, pillar variable-voltage transformer and pressurizer, annular, particularly about a kind of novel variable-voltage transformer that metal lining ring, sandwich brush, brush cooler are housed.
Existing variable-voltage transformer and pressurizer, TDGC2, TSGC2, TDGC2J, TSGC2J series variable-voltage transformer as the unified design in the whole nation, TNDGC, TNSGC series is variable-voltage transformer, TEDGZ, TESGZ series pillar variable-voltage transformer, the automatic variable-voltage transformer of TENDGZ, TENSGZ series pillar, TW, SVC series automatic voltage regulator automatically, DBW, SBW series automatic compensating voltage stabilizers etc., pressure regulation is to contact the purpose that the change in location that slides realizes regulating (stablizing) voltage by brush on the coil flour milling.The voltage regulator of this structure and pressurizer have following defective: 1. in order not make circuit breaker in adjusting, so brush must be made with the electrographite one class material of big resistance; 2. the necessary short circuit at least 2～3 circle coils simultaneously of brush have short circuit current to exist; 3. because brush contacts with the coil flour milling,, multiple reason increases because of making contact resistance, and increasing; 4. owing to the lining ring of former voltage regulator and pressurizer is made of engineering plastics, so heat conduction, diffusion heat, cooling condition extreme difference, make brush contact a large amount of heats that the place produces with the coil flour milling, can only be in lead one side by the lead cooling of dispelling the heat itself, so heat radiation is slow, and measure for a short time, cause local overheating; 5. because the brush of former voltage regulator and pressurizer generates heat is by the brush carrier heat radiation, indirect and spacing distance is far away.The Fa Gaore owing to above various reasons makes voltage regulator and a large amount of electric energy of pressurizer coil flour milling loss, this heat cooling is very slow, makes it voltage regulator and pressurizer very easily burns.
As our utility model in application on June 3rd, 94, the patent No.: 94213553.9, title: the patent of invention of " roller brushes that is used for the accurate location of voltage regulator and pressurizer " and on July 26th, 94 application, the patent No.: 94108752.2, title: " no flour milling roller brushes is the voltage regulator and the pressurizer of location accurately " all proposed rolling metallic brush and electrographite brush, this can only solve brush heating on one side, to solving with " conversion locator " in coil heating on one side, though this method effect is fine, but it is can not fundamentally solve, and too complicated, the cost height, complex process, be difficult to produce in batches.
And for example we are in the patent No. of on March 22nd, 95 application: 95205884.7, and title " has variable brush holder variable-voltage transformer of locator and pressurizer." in this utility model patent, we have also designed and this programme diverse ways, but than present design more complicated, be difficult for making, the cost height does not have the present design advanced person yet.
And for example we are in the patent No. of on January 17th, 96 application: 96202306.X, title " metal lining ring roller brushes variable-voltage transformer and pressurizer." in this utility model patent, we have also designed the brushgear different with this programme, but compare in the brush cooling with present design, to reduce on the resistance effect not so good.
The purpose of this utility model is to overcome the defective of prior art and a kind of novel variable-voltage transformer and pressurizer is provided, it has the metal lining ring of iron core outer lining to handle through insulation, coil is directly closely outside the metal lining ring, there is the coil of metal lining ring to make the coil flour milling on one side, sliding (rolling) moving brush on the flour milling, in the middle of making, brush is metal graphite brush, two limits are the sandwich brush of electrographite brush, the sandwich brush is inserted in the hole of brush cooler, the elasticity copper wire is housed around the hole of brush cooler, brush just can make brush become electric soft connection with the brush cooler after inserting.
The utility model is achieved by the following scheme: fix an iron core between base and the trim ring, the metal lining ring of iron core outer lining to handle through insulation, and with coil directly closely around its outside, it is flour milling that coil one side of metal lining ring is arranged, the mesopore fixed axis of base and trim ring, fixed brush frame on the axle, in the middle of the brush carrier front portion is installed with is metal graphite brush, two limits are sandwich brushes of at least one electrographite brush, the sandwich brush is inserted in the hole of brush cooler, and the elasticity copper wire is housed around the brush cooler hole, after brush inserts, just make brush become soft connection, and make the brush cooler short as far as possible with the distance of coil flour milling with the brush cooler.Brush cooler and sandwich brush all are fixed on the brush carrier, and make brush contact conduction with the coil flour milling, as long as by the rotation of the handwheel (or motor driven gear) on the axle, making brush roll (cunning) on the coil flour milling moves, thereby the ratio that changes between the coil first and second becomes, make output voltage regulate (or keeping stable), the terminal block and the control board of input, output are fixed on the shell its practical novel place.
Described metal lining ring is by copper (aluminium, iron etc.) metal manufacturing, metal is outward through insulation processing and making, lining outside iron core, and with coil directly closely outside it, make the coil flour milling at the coil that metal lining ring place is arranged, brush sliding (rolling) on the coil flour milling is moving;
Described sandwich brush is the moving metal graphite brush of the rolling of small resistor (cunning) and two limits by the centre, and electrographite brush is bonding to be formed for the rolling of at least one big resistance (cunning) moved;
Described brush cooler is to be made in the middle of the polygon porosely by copper coin, and elasticity copper wire (sheet) is housed in the hole;
Advantage of the present utility model: 1. be to make very big part electric current flow through the sandwich metallic brush, eliminated the contact position and generated heat greatly because of resistance because resistance of sandwich metallic brush own and contact resistance all are significantly smaller than electrographite brush; 2. be because brush cooler and sandwich brush are extremely short with the distance of coil flour milling brush contact position, short as far as possible, the heat that the sandwich brush is sent out conducts to the cooling of brush cooler rapidly on the one hand, make on the other hand electric current from the coil flour milling after the minimum distance of sandwich brush head, just flow in the brush cooler, this flows in the brush cooler after equaling few part of head that electric current only flows through the sandwich brush at once, electric energy loss is reduced, and caloric value reduces.When the sandwich brush is between two to three leads of short circuit, because spacing distance is extremely short between electrographite brush and the brush cooler, so resistance is quite little, the heat that electrographite brush produced is few, the device of this structure is constant for the resistance of the short circuit current of two leads, this is a skin effect, and this reduces the temperature rise of sandwich brush and coil flour milling contact position greatly; 3. be so interface resistance is very big, just to have eliminated short circuit current (being the no-load loss variation) because the stickup of sandwich brush is to make with megohmite insulant; 4. be since metal lining ring heat conduction diffusion cooling rapidly, so contact the heat that the place produces with the coil flour milling when brush, this heat conduction rapidly spreads apart, and makes the rapid reduction of contact position temperature and not overheated; 5. owing to be to use the metal lining ring, the sectional area of iron core is enlarged, this helps reducing magnetic flux density, reduces no-load loss, reduces heating.And under the situation of equal caloric value, the magnetic flux density of iron core can obtain higher than originally, and this helps dwindling the volume of entire product and reducing cost.By above five kinds of advantages, so the coil flour milling institute caloric value of sandwich brush contact position is few, thermal diffusion is fast, cooling rapidly, no local overheating, no turn-to-turn short circuit electric current, the temperature rise of coil flour milling is low, and brush is lossless, save a large amount of electric energy, waveform is undistorted, and the output voltage stepless continuous is adjustable (voltage stabilizing), and is simple in structure, volume is little, cost is low and in case overheated, heat just conducts rapidly and spreads apart, the copper cash that does not make the coil flour milling produces oxidation because of overheated, and voltage regulator and pressurizer are damaged because of local overheating, makes big leap ahead of life-span of voltage regulator and pressurizer.
The utility model has following accompanying drawing:
Figure of abstract: for the upper surface of annular core sandwich brush metal liner astragal gear drive is the automatic voltage regulator of flour milling and the structure chart of pressurizer.
Fig. 1: for annular core sandwich brush metal lining ring is the structure chart of the manual voltage regulator of flour milling in the upper surface.
Fig. 2: for the side of annular core sandwich brush metal liner astragal gear drive is the structure chart of flour milling.
Fig. 3: be the structure chart of laminated core structure sandwich brush metal lining ring.
Fig. 4: the location drawing of sandwich brush on the coil flour milling that is a metal sandwich brush and four electrographite brushes.
Fig. 5: the state diagram of sandwich brush on linear coil flour milling that is a metallic brush and four electrographite brushes.
Fig. 6: the state diagram of sandwich brush on oblique line shape coil flour milling that is a metallic brush and four electrographite brushes.
1 is iron core among the above-mentioned figure, and 2 is the metal lining ring, and 3 is coil, and 4 is trim ring, 5 is base, and 6 is brush carrier, and 7 is axle, and 8 is pressing plate, 9 is handwheel, and 10 is shell, and 11 is the sandwich brush, 12 is metallic brush, and 13 is electrographite brush, and 14 is the brush cooler, 15 is the coil flour milling, and 16 is gear bush, and 17 is upper cover plate, 18 is pointer, and 19 is dial, and 20 is terminal block and control board.
Executing example by above-mentioned accompanying drawing is further elaborated.
The metal lining ring (2) that novel variable-voltage transformer and pressurizer (referring to accompanying drawing) were handled through insulation outside iron core (1) by iron core (1) and lining, and with coil (3) directly closely outside it, make coil flour milling (15) at one side coil that metal lining ring (2) is arranged, sandwich brush (11) contacts with coil flour milling (15).Coil flour milling (15) is fixing with screw and base (5) with trim ring (4), and coil (3) is clamped in the centre.Brush carrier (6) is gone up device sandwich brush (11) and brush cooler (14).Brush carrier (6) is screwed on gear bush (16), is screwed on axle (7) again.The bottom of axle (7) is enclosed and base (5) location with gram, and the first half of axle (7) is positioned on the trim ring (4) with pressing plate (8).Be fixed with handwheel (9) band gear bush (16) on the axle (7)], be fixed with pointer (18) under the handwheel.Shell (10) is fixed on base (5), is fixed with terminal block (20) on the shell (10), upper cover plate (17) and dial (29).Rotate handwheel (9) [or gear bush (16)], thereby drive axle (7), sandwich brush (11) is gone up sliding (rolling) at coil flour milling (15) and is moved the turn ratio that reaches change first and second coil with this, thereby reaches the purpose of stepless evenly adjustable continuously (stablizing) output voltage.
Described sandwich brush (11) is a composite type, wherein is the small resistor metallic brush of being made by metallic graphite carbon (12), two limits are raising arc extinguishing, the extinguishing arc ability of at least one, eliminate the electrographite brush (13) of the big resistance of short circuit current (promptly not having the no-load loss variation), transformation.When the voltage regulator energising is used, because the resistance of metallic brush (12) is significantly smaller than electrographite brush (13), so make very big part electric current by metallic brush (12), so caloric value just reduces greatly, again because of each only metallic brush (12) and the width of electrographite brush (13) all less than the width at interval between two leads, and electrographite brush and metallic brush are bonding with insulating cement, so sheet resistance is very big, so sandwich brush (11), coil flour milling (15) does not produce short circuit current, has saved a large amount of electric energy again, and caloric value is reduced greatly, the temperature of heating place is landing significantly rapidly, and this has just increased voltage regulator widely, the useful life of pressurizer.
Described brush cooler (14) is to make in the middle of the polygon porose by copper coin, elasticity copper wire (sheet) is housed around the hole, insert sandwich brush (11) in this hole, make copper wire and sandwich brush (11) the soft connection of elasticity, this helps heat conduction, conduction, and copper coin dashed be drawn into porous, help heat radiation again.Because of brush cooler (14) and sandwich brush (11) extremely short with the distance of coil flour milling (15), so the heat that sandwich brush (11) and coil flour milling (15) produce conducts to brush cooler (14) rapidly and goes up cooling, this reduces the temperature of sandwich brush (11) and coil flour milling (15) greatly.Just increased the useful life of voltage regulator and pressurizer widely.
Described brush cooler (14) and sandwich brush (11) utilize the skin effect of brush, be assembled into the distance of coil flour milling (15) extremely short, after electric current flows to extremely short some distance of head of sandwich brush (11) from coil flour milling (15), just flow to external circuit by brush cooler (14), electric current is only by some distances of sandwich brush (11) head like this, rather than all, so an electrical loss and a heating head are little by little, electrical loss amount and caloric value are reduced greatly, saved a large amount of electric energy.
Described metal lining ring (2) is to make circle (vertical bar) shape with copper (iron, aluminium), and handle through the insulating material of quick conductive the outside.With metal lining ring (2) lining outside iron core (1), and with coil (3) directly closely outside metal lining ring (2).So when the contact position of coil flour milling (15) with sandwich brush sandwich brush (11), because of the heating in a single day of certain reason, this heat just is transferred to metal lining ring (2) rapidly, after metal lining ring (2) is heated, just spread to whole metal lining ring (2) apace, and this heat just is transferred to metallic brush (12) and electrographite brush (13) rapidly on the other hand, and apace to brush cooler (14) diffusion, cooling.The temperature that makes coil flour milling (15) heating place is landing significantly rapidly, makes the copper cash of coil flour milling (15) can be because of overheated oxidation, and coil (3) can not damage because of overheated, and this has just increased the useful life of voltage regulator and pressurizer widely.
Described iron core (1) for annular, outer lining with the planar shaped handled through insulation (with straight shape or oblique serrate slot) serve as a contrast the metal lining ring (2) on one side at least and with coil (3) directly closely outside metal lining ring (2).
Described iron core (1) is stacked, outer lining with serve as a contrast the metal lining ring (2) on one side through insulation rectangular (cylindrical) handled at least with straight shape groove or drift slot (but also planar shaped) and with coil (3) directly closely outside metal lining ring (2).
If solid conductor coil flour milling (15) is wide to be b, insulation gap is wide to be j, and it is a that metallic brush (12) laterally contacts shared width, and it is c that an electrographite brush (13) laterally contacts shared width, realizes necessary condition of the present utility model:
b+2j＞4c+a＞b+j＞2c＞b＞j＞c≥a
The branch plurality of processes is analyzed explanation below:
Said process is positive and negative can, go round and begin again, sandwich brush (11) rolls (cunning) from coil flour milling (15) and moves, electric current is unimpeded all the time, is that loss is very little in 1,2,3,4,5 five processes in the ordinary course of things, does not promptly all have short circuit current in overall process and has (promptly not having the no-load loss variation), and in case because because of multiple former thereby generation heat, in this just fast on one side i.e. metal lining ring (2) of coil flour milling (15), rapid diffusion, cooling fast by being close to.With regard to outwards spreading rapidly, cool off by brush cooler (14), do not make the contact position overheated at sandwich brush (11) one side heat, low coil flour milling (15) the copper surface that makes of Yin Wendu does not just produce oxidation like this, does not make coil (3) damage and big leap ahead of life-span.
Advantage by above analysis present design is: brush and coil flour milling contact position Directly cooling, heat conduction, heat radiation, diffusion cooling are fast, caloric value is little, temperature rise is low, no office Section is overheated, brush and coil flour milling do not have open circuit loss variation (no inter-turn short circuit current), connect Touch the not oxidation of flour milling copper cash, brush contact resistance is little, brush resistance is little, brush is lossless, Obvious energy conservation, output voltage stepless evenly continuously adjustable (stablizing), simple in structure, cost is low, Volume is little, a kind of metal lining ring, sandwich brush used of long service life, the brush cooler--Novel voltage-regulating device and voltage-stablizer.
Claims (5)
1, novel variable-voltage transformer, comprise iron core and the metal lining ring through insulate handled of lining outside iron core, and with coil directly closely outside this metal lining ring, trim ring is arranged above the coil, and fix with screw and base, make coil stationary in the centre, brush be the sandwich brush and and the brush cooler all be fixed on the brush carrier, brush carrier is screwed on axle, the axle bottom is enclosed and the base location with gram, and axle top is positioned on the trim ring with pressing plate, is fixed with handwheel on the axle, shell is fixed on the base, it is characterized in that:
A, described metal lining ring are to make circle, bar, band with copper, aluminium, iron etc., this metal lining ring menopause edge was handled lining outside iron core, and with coil, directly closely outside the metal lining ring, have metal lining ring coil on one side to make flour milling, brush slides on the coil flour milling;
To be the sandwich brush partly form by two for b, described brush: intermetallic metal electrographite brush, two limits are at least one electrographite brush, and be gluing and make;
C, described brush cooler are that copper coin is made, middle porose and dress band elasticity copper wire, and the sandwich brush inserts in this hole and with the elasticity copper wire and becomes soft connection;
2, as claims 1 described novel variable-voltage transformer, it is characterized in that: described iron core is annular, the planar shaped of outer lining to handle through insulation,
At least lining on one side the metal lining ring and with coil directly closely outside the metal lining ring, be lined with metal lining ring coil on one side and make flour milling, brush is sliding on the flour milling;
3, as claims 1 described novel variable-voltage transformer, it is characterized in that: iron core is stacked, the planar shaped of outer lining to handle through insulation,
At least lining on one side the metal lining ring and with coil directly closely outside the metal lining ring, be lined with metal lining ring coil on one side and make flour milling, brush is sliding on the flour milling;
4, as claims 1 described novel variable-voltage transformer, it is characterized in that: described brush is that the sandwich brush is partly formed by two: the rolling electrographite brush of rolling metal graphite brush and at least two big resistance is formed;
5, as claims 1 described novel variable-voltage transformer, it is characterized in that: described brush cooler be by heat conduction and heat radiation fast material make, middle porose and the band elastic copper sheet is housed, brush inserts from this hole, and becomes soft connection with the band elastic copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96216903 CN2297786Y (en) | 1996-06-19 | 1996-06-19 | Contacting voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96216903 CN2297786Y (en) | 1996-06-19 | 1996-06-19 | Contacting voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297786Y true CN2297786Y (en) | 1998-11-18 |
Family
ID=33898230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96216903 Expired - Fee Related CN2297786Y (en) | 1996-06-19 | 1996-06-19 | Contacting voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297786Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856060A (en) * | 2012-09-27 | 2013-01-02 | 乐清市乐翔电气有限公司 | Screw type variable-voltage transformer |
| WO2015135235A1 (en) * | 2014-03-12 | 2015-09-17 | 四川城际轨道交通材料有限责任公司 | Electric locomotive grounding device and arc suppression method |
-
1996
- 1996-06-19 CN CN 96216903 patent/CN2297786Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856060A (en) * | 2012-09-27 | 2013-01-02 | 乐清市乐翔电气有限公司 | Screw type variable-voltage transformer |
| CN102856060B (en) * | 2012-09-27 | 2015-04-29 | 乐清市乐翔电气有限公司 | Screw type variable-voltage transformer |
| WO2015135235A1 (en) * | 2014-03-12 | 2015-09-17 | 四川城际轨道交通材料有限责任公司 | Electric locomotive grounding device and arc suppression method |
| RU170593U1 (en) * | 2014-03-12 | 2017-05-02 | Сычуань Интерсити Рейл Трафик Матириалз Ко., Лтд. | ELECTRIC TRUCK EARTHING DEVICE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Rongmin Document name: payment instructions |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Rongmin Document name: Notice of termination |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |