CN201152804Y - Water cooled field coil - Google Patents
Water cooled field coil Download PDFInfo
- Publication number
- CN201152804Y CN201152804Y CNU2008200007922U CN200820000792U CN201152804Y CN 201152804 Y CN201152804 Y CN 201152804Y CN U2008200007922 U CNU2008200007922 U CN U2008200007922U CN 200820000792 U CN200820000792 U CN 200820000792U CN 201152804 Y CN201152804 Y CN 201152804Y
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- Prior art keywords
- spiral winding
- inner ring
- copper cash
- planar spiral
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000004804 winding Methods 0.000 claims abstract description 140
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052802 copper Inorganic materials 0.000 claims abstract description 61
- 239000010949 copper Substances 0.000 claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 239000000498 cooling water Substances 0.000 claims abstract description 18
- 230000008676 import Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 241000237858 Gastropoda Species 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 12
- 238000003475 lamination Methods 0.000 description 8
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A water cooling magnet exciting coil comprises plane spiral coil panels formed by winding rectangle hollow copper wires, and a magnet exciting coil winding is formed by superposing the plane spiral coil panels up and down; the adjacent plane spiral coil panels have coiled structure along the opposite direction, the outer ring pipe end and the inner ring pipe end of each plane spiral coil panel are respectively taken as a connecting end of cooling water, and the connecting structure of waterway parallel connection and circuit series connection are formed among the plane spiral coil panels. The coil reduces the circulating distance of the cooling water to be shortest, so as to realize the effect of high efficient cooling and control the highest temperature raising of a magnet exciting coil to be bellow 30 DEG C; the water cooling magnet exciting coil can lead the internal aperture of the hollow copper wire for winding the magnet exciting coil to be smaller, so as to effectively improve the electrical conductivity of the hollow copper wires and eliminate the defect that the magnet exciting coil is overheated due to inputting higher current. Meanwhile, the preparing working procedure of the magnet exciting coil is simple, so that the low pressure import and export of the cooling water can be more conveniently realized; the water cooling magnet exciting coil can be applied to various large and medium sized electrical vibration tables.
Description
Technical field
The utility model belongs to the cooling system of electric vibration table, is specifically related to a kind of electric vibration table water cooling exciting coil with preferable cooling effect.
Background technology
Electric vibration table is implemented in the stationary magnetic field in the working gas gap and the alternating magnetic field of drive coil owing to need feed electric current in field coil, because the influencing field coil and can produce certain heat of resistance, in order to guarantee that shaking table can work long hours, and need cool off field coil.The type of cooling of electric vibration table is divided into natural cooling, air-cooled, liquid cooling and other modes; Liquid cooling is owing to use liquid such as oil or water can realize forcing preferably cooling as heat eliminating medium, and the cooling effectiveness height is widely used in large and medium-sized electric vibration table.
At present, the field coil of internal and international water cooled electrodynamic shaking table generally adopts the planar spiral winding dish lamination pattern of hollow core conductor winding; A field coil is divided at least two unit windings, each unit winding is coiled into the single layer coil dish by the hollow copper tubing snail earlier, again with superimposed formation about the even number single layer coil dish, wherein, tube head and pipe tail lay respectively on the outer ring of ground floor and last one deck, and the hollow copper tubing between the single layer coil dish adopts splicing or realizes continuously connecting; Hollow pipe in each unit winding constitutes a chilled water round-robin duplexure; Then that each unit winding is superimposed up and down, the tube head of first module winding is as a power end of field coil, and the pipe tail is electrically connected with the tube head of next unit winding, and the pipe tail of last unit winding is as another power end of field coil.Such excitation coil structure is because water stream channel reaches two circles or more than two circles, bigger in the pressure down-off loss of 1MPa, cooling effect is bad.
For example from water cooled electrodynamic shaking table field coil that the eighties in last century, Britain LDS company just brought into use, it is made of a plurality of double plate lamination windings, described double plate lamination winding is by last, down two-layer single-disc winding series connection forms, all double plate lamination windings vertically superpose, wherein, each double plate lamination winding tube chamber formation in parallel cooling water channel in parallel, the field coil of each double plate lamination winding body series connection welding forming circuit series connection, each double plate lamination winding is coiled to form from the middle to both ends by a hollow tubular lead, wherein, the coiling of one deck single-disc winding forward forms, and another layer single-disc winding inverted plate is around formation, and non junctions connect in the middle of two disc type windings.Adopting in twos, coil panel directly turns to bilayer or multilayer planar spiral winding lamination by sufficiently long rectangle or square hollow core conductor, again by the chilled water that is connected in parallel, though this technical scheme has solved the problem that the winding intermediate head connects in the disc winding, but owing to pass through rectangle or square copper cash series connection winding between the two planar spiral winding dishes, the copper cash length that requires is long, through practical application, adopting as above, the temperature rise of excitation coil plate field coil in the high thrust vibration test of structure reaches about 40 ℃, can not reach the technical requirement of vibration test, and if field coil be in the life-span that not only can influence field coil under the so high temperature for a long time; Problems such as chilled water leakage also can be because field coil is overheated appear at the joint area of disc winding.
The utility model content
Fundamental purpose of the present utility model is to provide that a kind of cooling effect is good, manufacture craft is simple more, the access of chilled water and pick out convenient water cooling exciting coil, has solved that existing field coil cooling effect is poor, chilled water defective such as leakage easily.
In order to address the above problem, the technical solution adopted in the utility model is as follows:
A kind of water cooling exciting coil, comprise the planar spiral winding dish that forms by the coiling of rectangle hollow copper cash, it is characterized in that described planar spiral winding dish superimposed composition field coil winding up and down, adjacent plane spiral winding dish is that inverted plate is around structure, the outer ring pipe end of each planar spiral winding dish and inner ring pipe end be respectively as the link of chilled water, is water route parallel connection, the circuit structure that is connected in series between each planar spiral winding dish.
Concretely, the outer ring pipe end of described each planar spiral winding dish and inner ring pipe end water inlet end and the water side of inserting cooling water pipe all in parallel, each planar spiral winding dish forms each layer plane spiral winding dish cooling loop in parallel as the cooling-water duct of a sealing.
The inner ring copper cash end of described two adjacent planar spiral winding dishes is welded with a T shape three-way connector, and two straight-through ports of described T shape three-way connector are fixing with the terminal welding of two inner ring copper cash respectively, the another port as chilled water into and out of water end (W.E.).
Described T shape three-way connector carries out electricity with the inner ring copper cash end of two snail drums and is connected in series, and the chilled water electrical isolation is derived in the another port of described T shape threeway.
The terminal T shape three-way connector that welds of the terminal inner ring copper cash of the inner ring copper cash of the first planar spiral winding dish of described field coil winding with the second planar spiral winding dish, two inner ring copper cash ends form electric cascaded structure; The terminal inner ring copper cash end with Siping City's surface helix coil panel of the inner ring copper cash of described the 3rd planar spiral winding dish also welds T shape three-way connector, with the electric cascaded structure of the terminal formation of these two inner ring copper cash, and the like, form each planar spiral winding dish electricity cascaded structure in the whole field coil winding, the parallel-connection structure of chilled water is realized in the another port of each T shape three-way connector as chilled water water inlet end or water side.
The inner ring copper cash end of the adjacent plane spiral winding dish of described field coil winding is provided with the pad that the two is fixedly connected and forms the electricity structure that is connected in series, and the terminal coolant guide pipe that connects of two inner ring copper cash imports the chilled water electrical isolation or derive.
The terminal inner ring copper cash end with the second planar spiral winding dish of the inner ring copper cash of the first planar spiral winding dish of described field coil winding is provided with electricity that pad forms two the inner ring copper cash ends structure that is connected in series; The terminal inner ring copper cash end with Siping City's surface helix coil panel of the inner ring copper cash of described the 3rd planar spiral winding dish also is provided with electricity that pad forms two the inner ring copper cash ends structure that is connected in series, and the like, the electricity that forms each planar spiral winding dish in the whole field coil winding is connected in series.
The outer ring of the adjacent two planar spiral winding dishes of described field coil winding is terminal adopts T shape three-way connector or pad to form the electricity structure that is connected in series.
Though this water cooling exciting coil dish has still adopted up and down superimposed structure of planar spiral winding dish,, realized the shortizationest design of the single cooling-water duct of water cooling exciting coil with the water stream channel of every layer plane spiral winding dish as a sealing.By electricity be connected in series and chilled water be connected in parallel, the rectangle hollow copper cash that makes coiling form field coil is shortened greatly, chilled water circulates in the hollow copper wire shorter than prior art, can form the bigger heat interchange temperature difference, take the heat that coil produces out of vibrational system rapidly, this has been avoided available technology adopting rectangle hollow copper cash series connection coiling to form bilayer or lattice coil dish, the defective that heat can not be taken out of rapidly fully.
The inner ring pipe end of all planar spiral winding dishes and outer ring pipe end all can adopt T shape three-way connector or pad to realize that the electricity of adjacent plane spiral winding dish is connected in series, T shape three-way connector can also realize that the cooling-water duct of two planar spiral winding dishes incorporates a water inlet end or water side, the access of more convenient chilled water or derivation into.Importing or derivation for the chilled water of each planar spiral winding dish, promptly can adopt the inner ring end and the terminal aqueduct that is connected in outer ring of each planar spiral winding dish, aqueduct inserts the form of chilled water concetrated pipe more then, also can adopt the form of the end of each planar spiral winding dish directly being incorporated into the chilled water concetrated pipe.Pad is disposed on the copper cash end of two adjacent plane spiral winding dishes, and to the access of chilled water with can not cause any scale effect everywhere, the water route of realizing every layer of coil panel is easily singly advanced singly to go out and reach better cooling effect.
The beneficial effects of the utility model are, this water cooling exciting coil reasonable in design, be reduced to the circulation distance of chilled water the shortest, realized the efficient cooling effect of chilled water, the maximum temperaturerise of 10～36 tons Large Electric shaking table field coil can be controlled at below 30 ℃, this more meets the technical requirement of vibration test undoubtedly.This water-cooled water field coil can make the internal orifice dimension of hollow copper wire of coiling field coil littler, effectively improves the conductivity of hollow copper wire, eliminates field coil because of feeding the big overheated defective of electric current.The preparation section of this field coil is simple simultaneously, can realize more easily that the low pressure of chilled water imports and derives, and has effectively reduced the easy problem of revealing of the interface chilled water that causes because of field coil is overheated.This water cooling exciting coil can be applied to the use of various large and medium-sized electric vibration tables.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Fig. 1 is the part winding structure synoptic diagram of field coil winding in the utility model;
Fig. 2 is that the chilled water of two planar spiral winding dishes among the utility model embodiment 1 imports and the derived type structure synoptic diagram;
Fig. 3 is the perspective view of Fig. 2;
Fig. 4 is the electric connection structure synoptic diagram of two planar spiral winding dishes among the utility model embodiment 2.
Embodiment
Embodiment 1 as shown in Figure 1, this water cooling exciting coil is made up of a plurality of planar spiral winding dishes that the rectangle hollow copper cash coiling of less internal orifice dimension forms, each planar spiral winding dish is superimposed up and down, and the outer ring pipe end of each planar spiral winding dish and inner ring pipe end are respectively as the chilled water link.Superimposed up and down planar spiral winding dish 1,2, it between 3 and 4 reverse rotation coiling structure between adjacent plane spiral winding dish, the structure of remaining planar spiral winding dish is identical with it, the first planar spiral winding dish 1 is identical with the coiling direction of the 3rd planar spiral winding dish 3, the second planar spiral winding dish 2 is identical with the coiling direction of Siping City's surface helix coil panel 4, first, second, the outer ring pipe end 11 of the third and fourth planar spiral winding dish, 21,31 and 41 are positioned at the same side of field coil, and draw relatively, the inner ring pipe end of each planar spiral winding dish is also drawn with same structure.The cooling water channel list that can realize every layer of coil panel so easily advances singly to go out with electricity and is connected in series.Each planar spiral winding dish is all as the cooling-water duct of a sealing, and the cooling-water duct between all single planar spiral winding dishes is and is arranged in parallel.
As shown in Figures 2 and 3, two adjacent inverted plate around the first planar spiral winding dish 1 and terminal 12 and 22 of the inner ring copper cash of the second planar spiral winding dish 2 be welded with a T shape three-way connector 5, two straight-through ports of T shape three-way connector 5 are fixing with terminal 12 and 22 welding of two inner ring copper cash respectively, the electricity that forms two planar spiral winding dishes is connected in series, conduct cooling water side after the another port bending of T shape three-way connector.The outer ring pipe end 11 of the first and second planar spiral winding dishes and 21 is as the cooling water inlet end, form the water route parallel-connection structure of two planar spiral winding dishes, also the terminal inner ring copper cash end with Siping City's surface helix coil panel of the inner ring copper cash of the 3rd planar spiral winding dish also can be welded T shape three-way connector, with the electric cascaded structure of the terminal formation of these two inner ring copper cash.Terminal T shape three-way connector or the pad of adopting of the terminal outer ring copper cash with the 3rd layer plane spiral winding dish of the outer ring copper cash of second layer plane spiral shell spiral winding dish realized electric the series connection.And the like, form all planar spiral winding dish electricity cascaded structures,
As shown in Figure 4, electrically connect as cascaded structure between each layer plane spiral winding dish of this water cooling exciting coil, the outer ring copper cash end of the first planar spiral winding dish 1 of the superiors is as electrical input, its inner ring pipe end 12 realizes that by outside weldings point of fixity 6 electricity of two planar spiral winding dishes is connected in series with two copper cash ends of the inner ring pipe end 22 of adjacent second layer planar spiral winding dish 2, the terminal collinear end in outer ring with the 3rd planar spiral winding dish of the outer ring copper cash of second layer planar spiral winding dish also adopts pad to form the electricity structure that is connected in series, the terminal inner ring copper cash end with Siping City's surface helix coil panel of the inner ring copper cash of the 3rd planar spiral winding dish also is provided with electricity that pad forms two the inner ring copper cash ends structure that is connected in series, by that analogy, the electricity that can realize whole field coil planar spiral winding dish is connected in series.
The preparation technology of this water cooling exciting coil is simple, can select for use internal diameter littler, the rectangle hollow copper cash coiling planar spiral winding dish that conductivity is bigger, the stack of the system of then each planar spiral winding dish being rewound direction realizes that by T shape three-way connector or pad the inner ring pipe end of per two planar spiral winding dishes or the electricity of outer ring pipe end are connected in series.So just can be by between the superiors of field coil and orlop planar spiral winding dish, lead being set, can realize the introducing of electricity easily and draw.
This water cooling exciting coil is when operation, can be according to the situation that feeds electric current, select the feeding pressure of chilled water, owing to adopted the lead of big conductivity, the heat production of field coil further can be reduced, thereby the feeding pressure of chilled water can be reduced, the temperature that keeps water cooling exciting coil really is in reasonable range.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in instructions and the embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the utility model is not limited to specific details and illustrates here and describe.
Claims (8)
1. water cooling exciting coil, comprise the planar spiral winding dish that forms by the coiling of rectangle hollow copper cash, it is characterized in that described planar spiral winding dish superimposed composition field coil winding up and down, adjacent plane spiral winding dish is that inverted plate is around structure, the outer ring pipe end of each planar spiral winding dish and inner ring pipe end be respectively as the link of chilled water, is water route parallel connection, the circuit structure that is connected in series between each planar spiral winding dish.
2. water cooling exciting coil according to claim 1, the outer ring pipe end and inner ring pipe end water inlet end and the water side of inserting cooling water pipe all in parallel that it is characterized in that described each planar spiral winding dish, each planar spiral winding dish forms each layer plane spiral winding dish cooling loop in parallel as the cooling-water duct of a sealing.
3. water cooling exciting coil according to claim 1, the inner ring copper cash end that it is characterized in that described two adjacent planar spiral winding dishes is welded with a T shape three-way connector, two straight-through ports of described T shape three-way connector are fixing with the terminal welding of two inner ring copper cash respectively, the another port as chilled water into and out of water end (W.E.).
4. water cooling exciting coil according to claim 3 is characterized in that described T shape three-way connector carries out electricity with the inner ring copper cash end of two snail drums and is connected in series, and the chilled water electrical isolation is derived in the another port of described T shape threeway.
5. water cooling exciting coil according to claim 3, the terminal inner ring copper cash end with the second planar spiral winding dish of inner ring copper cash that it is characterized in that the first planar spiral winding dish of described field coil winding welds T shape three-way connector, and two inner ring copper cash ends form electric cascaded structure; The terminal inner ring copper cash end with Siping City's surface helix coil panel of the inner ring copper cash of described the 3rd planar spiral winding dish also welds T shape three-way connector, with the electric cascaded structure of the terminal formation of these two inner ring copper cash, and the like, form each planar spiral winding dish electricity cascaded structure in the whole field coil winding, the parallel-connection structure of chilled water is realized in the another port of each T shape three-way connector as chilled water water inlet end or water side.
6. water cooling exciting coil according to claim 1, the inner ring copper cash end that it is characterized in that the adjacent plane spiral winding dish of described field coil winding is provided with the pad that the two is fixedly connected and forms the electricity structure that is connected in series, and the terminal coolant guide pipe that connects of two inner ring copper cash imports the chilled water electrical isolation or derive.
7. water cooling exciting coil according to claim 6, the terminal inner ring copper cash end with the second planar spiral winding dish of inner ring copper cash that it is characterized in that the first planar spiral winding dish of described field coil winding are provided with electricity that pad forms two the inner ring copper cash ends structure that is connected in series; The terminal inner ring copper cash end with Siping City's surface helix coil panel of the inner ring copper cash of described the 3rd planar spiral winding dish also is provided with electricity that pad forms two the inner ring copper cash ends structure that is connected in series, and the like, the electricity that forms each planar spiral winding dish in the whole field coil winding is connected in series.
8. water cooling exciting coil according to claim 1 is characterized in that being that terminal T shape three-way connector or the pad of adopting in the outer ring of adjacent two planar spiral winding dishes of described field coil winding forms the electricity structure that is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200007922U CN201152804Y (en) | 2008-01-23 | 2008-01-23 | Water cooled field coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200007922U CN201152804Y (en) | 2008-01-23 | 2008-01-23 | Water cooled field coil |
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| Publication Number | Publication Date |
|---|---|
| CN201152804Y true CN201152804Y (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200007922U Expired - Fee Related CN201152804Y (en) | 2008-01-23 | 2008-01-23 | Water cooled field coil |
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| CN (1) | CN201152804Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867546A (en) * | 2012-09-11 | 2013-01-09 | 中国科学技术大学 | Device with simplified 12-electrode-field magnet and manufacturing method thereof |
| CN104464896A (en) * | 2013-09-25 | 2015-03-25 | 金盘电气集团（上海）有限公司 | Hollow conductor with reinforcing ribs |
| CN110600221A (en) * | 2019-10-21 | 2019-12-20 | 北京小米移动软件有限公司 | Magnetizing device and magnetizing method |
| CN111570241A (en) * | 2020-05-27 | 2020-08-25 | 脉创测控装备科技（苏州）有限公司 | Water and electricity connection structure and method of welding-free water-cooling exciting coil |
| CN112550759A (en) * | 2020-12-08 | 2021-03-26 | 北京强度环境研究所 | Water-cooled high-temperature vibration test switching frock |
| CN112629793A (en) * | 2021-03-10 | 2021-04-09 | 苏州东菱振动试验仪器有限公司 | Underwater vibration table with built-in cooling system |
| CN115178450A (en) * | 2022-07-05 | 2022-10-14 | 苏州苏试试验集团股份有限公司 | Excitation device and electric vibration table |
-
2008
- 2008-01-23 CN CNU2008200007922U patent/CN201152804Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867546A (en) * | 2012-09-11 | 2013-01-09 | 中国科学技术大学 | Device with simplified 12-electrode-field magnet and manufacturing method thereof |
| CN102867546B (en) * | 2012-09-11 | 2015-01-21 | 中国科学技术大学 | Device with simplified 12-electrode-field magnet and manufacturing method thereof |
| CN104464896A (en) * | 2013-09-25 | 2015-03-25 | 金盘电气集团（上海）有限公司 | Hollow conductor with reinforcing ribs |
| CN110600221A (en) * | 2019-10-21 | 2019-12-20 | 北京小米移动软件有限公司 | Magnetizing device and magnetizing method |
| CN110600221B (en) * | 2019-10-21 | 2021-06-15 | 北京小米移动软件有限公司 | Magnetizing device and magnetizing method |
| US11189411B2 (en) | 2019-10-21 | 2021-11-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Magnetizing device and magnetizing method |
| CN111570241A (en) * | 2020-05-27 | 2020-08-25 | 脉创测控装备科技（苏州）有限公司 | Water and electricity connection structure and method of welding-free water-cooling exciting coil |
| CN112550759A (en) * | 2020-12-08 | 2021-03-26 | 北京强度环境研究所 | Water-cooled high-temperature vibration test switching frock |
| CN112629793A (en) * | 2021-03-10 | 2021-04-09 | 苏州东菱振动试验仪器有限公司 | Underwater vibration table with built-in cooling system |
| CN112629793B (en) * | 2021-03-10 | 2021-06-11 | 苏州东菱振动试验仪器有限公司 | Underwater vibration table with built-in cooling system |
| CN115178450A (en) * | 2022-07-05 | 2022-10-14 | 苏州苏试试验集团股份有限公司 | Excitation device and electric vibration table |
| CN115178450B (en) * | 2022-07-05 | 2024-03-08 | 苏州苏试试验集团股份有限公司 | Excitation device and electric vibrating table |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel method for winding of water cooling exciting coil Effective date of registration: 20110303 Granted publication date: 20081119 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2011990000063 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120331 Granted publication date: 20081119 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2011990000063 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel method for winding of water cooling exciting coil Effective date of registration: 20120331 Granted publication date: 20081119 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2012990000119 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130628 Granted publication date: 20081119 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2012990000119 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel method for winding of water cooling exciting coil Effective date of registration: 20130703 Granted publication date: 20081119 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2013990000429 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140922 Granted publication date: 20081119 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2013990000429 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
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Granted publication date: 20081119 Termination date: 20160123 |
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