CN201774334U - Insulating joint of inner cooled hollow wire - Google Patents
Insulating joint of inner cooled hollow wire Download PDFInfo
- Publication number
- CN201774334U CN201774334U CN2010202747806U CN201020274780U CN201774334U CN 201774334 U CN201774334 U CN 201774334U CN 2010202747806 U CN2010202747806 U CN 2010202747806U CN 201020274780 U CN201020274780 U CN 201020274780U CN 201774334 U CN201774334 U CN 201774334U
- Authority
- CN
- China
- Prior art keywords
- joint
- ceramic insulator
- hollow lead
- copper sleeve
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000010949 copper Substances 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 47
- 239000000919 ceramic Substances 0.000 claims abstract description 36
- 239000012212 insulator Substances 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 210000004491 foramen ovale Anatomy 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 15
- 239000002826 coolant Substances 0.000 abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 abstract 4
- 239000010935 stainless steel Substances 0.000 abstract 4
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to an insulating joint of an inner cooled hollow wire, which is used for the insulated connection of the hollow wire with a cooling system, wherein the insulating joint is provided with a stainless steel joint, a ceramic insulator and a copper joint; the stainless steel joint is internally provided with a through hole communicated with a pipe of the cooling system, two ends of the ceramic insulator are respectively fixedly connected with the stainless steel joint and the copper joint, the ceramic insulator is internally provided with an axial through hole communicated with the through hole of the stainless steel joint, the end part of the copper joint is provided with one or more than two oval foramens for the radial insertion of the hollow wire, the copper joint is internally provided with an axial blind hole communicated with the inner core of the hollow wire, one end of the axial blind hold is communicated with the through hole of the ceramic insulator, and the conductor of the hollow wire is electrically connected with the copper joint. The insulating joint not only causes the electric connection between the wires of a machine winding to be stable and reliable, but also causes a cooling medium not to leak easily, and simultaneously can ensure the stable running of the motor cooling system.
Description
Technical field
The utility model relates to a kind of insulating joint of inner-cooled hollow lead, in particular for the insulating joint that connects between the winding of inner-cooled wind-driven generator and the cooling system.
Background technology
Adopt the generator of the inner-cooled type of cooling, its stator winding adopts the hollow lead, not only switches on but also lead to coolant in lead, and this just requires being connected of winding and cooling system that reliable insulation must be arranged, and the leakage of coolant can't take place.
At present, both at home and abroad the inner-cooled motor the coolant of normal employing water and oil are arranged, but no matter adopt which kind of medium, the inner-cooled stator coil all will use insulating joint.Existing joint mainly is divided into three types, and a kind of is at end nose water power separately, is electrically connected a dependence and a copper bar and realizes.Second kind is at nose all hollow leads of single line rod to be turned to extract out, puts water swivel after the soldering and sealing, and solid copper wire is by the root butt joint.The third is water swivel directly to be overlapped on the online excellent termination once welding.As shown in Figure 1, water swivel is exactly the big flood box of a forging, is respectively equipped with water swivel and Electricity Federation contact pin above.But these connecting mode majorities only are applicable to large-scale water-cooled generator.
Domestic application for a patent for invention ZL94115324.X " a kind of machinery and electrical connection arrangement that is used to carry and discharge the conductor element of cooling fluid " discloses a kind of jockey of inner-cooled coil, be fixed on together on the metalwork at this device hollow core conductor and solid conductor, this metalwork is connected with a hydroecium, the connector that is used to carry and discharge cooling fluid is housed on this hydroecium successively, and metalwork, hydroecium and connector are then contained by an insulating case, wherein, this insulating case is made up of the insulating part of single part or a plurality of parts, this insulating part comes down to be pushed into metalwork with its inboard, on hydroecium and the connector, and go up diametrically and axially they covered, and wherein be provided be used to be filled near the metalwork place and between near the metalwork at connector place and insulating part the filling piece in space between space or connector and the insulating part.This installs convenient disassembly, but structure is comparatively complicated.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of insulating joint of inner-cooled hollow lead is provided, make being connected of the winding of inner-cooled generator and cooling system simple and reliable, not only be electrically connected reliable and stable between the lead of motor windings, and coolant is difficult for leaking, and the while can guarantee the stable operation of motor cooling system.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of insulating joint of inner-cooled hollow lead, being used for the hollow lead is connected with the insulation of cooling system, described insulating joint has stainless joint, ceramic insulator and copper sleeve, described stainless joint inside has the through hole that is communicated with the pipeline of cooling system, fixedly connected with copper sleeve with stainless joint respectively in the ceramic insulator two ends, ceramic insulator inside is provided with the axially extending bore that is communicated with the through hole of stainless joint, described copper sleeve end has one or more and is used for the oval foramen that the hollow lead radially inserts, described copper sleeve inside is provided with the axial blind hole that is communicated with hollow lead inner core, axial blind hole one end is communicated with the axially extending bore of ceramic insulator, and the conductor of described hollow lead is electrically connected with copper sleeve.
Further, described copper sleeve is made by fine copper or copper alloy, and described ceramic insulator is made by ceramic material.
The mode that the conductor of described hollow lead is electrically connected with copper sleeve is: the conductor and the copper sleeve of described hollow lead are welded to connect.Because good fine copper or the copper alloy of the preferred electric conductivity of copper sleeve, and be welded to connect solid and reliablely, therefore guaranteed that the electrical connection between the hollow lead is reliable and stable.
Further, described ceramic insulation sub-surface symmetry has the groove that a side does not connect more than two, the opening direction of corresponding two grooves is opposite, place trip bolt in the groove, ceramic insulator is fixedlyed connected with the copper sleeve ring flange of copper sleeve by the trip bolt in the groove, and ceramic insulator is fixedlyed connected with the stainless joint ring flange of stainless joint by the trip bolt in the corresponding recesses.
Further, described ceramic insulator is external diameter and the corresponding cylinder of copper sleeve ring flange, and described trip bolt is a soket head cap screw, and described groove has the cavity that can hold the screwing tool that is used to screw soket head cap screw.Adopt ceramic insulator that copper sleeve and stainless joint are isolated, well realized insulation, adopt the soket head cap screw connection simultaneously, not only connect fasteningly, and dismantle easy to maintenance.
Further, the axially extending bore both sides of described ceramic insulator are provided with sealed step, place metallic packing ring in the sealed step, and the height of metallic packing ring is higher than the degree of depth of sealed step under the nature.
Further, described metallic packing ring adopts the alloy material with plastic property to make.Metallic packing ring can bear bigger pressure, also is difficult for impairedly or aging under higher temperature conditions, has guaranteed the sealing property of insulating joint.
Be connected with cooling system when described stainless joint uses, be connected reliably with the pipeline of cooling system by the mode of welding or be threaded.
The beneficial effects of the utility model are: stainless joint of the present utility model is connected with cooling system, the through hole of stainless joint inside is communicated with cooling pipe, the axial blind hole of copper sleeve is the runner of coolant, the through hole of coolant through the axially extending bore of the axial blind hole of copper sleeve, ceramic insulator, stainless joint inside flows out or enters hollow lead inner core, the heat that produces in the winding work with hollow lead composition is taken out of, realizes the cooling of winding.The utility model is simple in structure, technology is convenient to operation, pressure, the reliability that owing to adopted metallic packing ring, make that the insulating joint sealing property is reliable, long service life, inside can be born higher coolant are better.The utility model makes being connected of the winding of inner-cooled generator and cooling system simple and reliable, not only is electrically connected reliable and stablely between the lead of motor windings, and coolant is difficult for leaking, and the while can guarantee the stable operation of motor cooling system.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the cross-sectional schematic of Fig. 2;
Fig. 4 is the enlarged diagram at A place among Fig. 3;
Wherein: 1. stainless joint, 1-1. stainless joint ring flange, 2. metallic packing ring, 3. ceramic insulator, 3-2. sealed step, 3-3. axially extending bore, 4. soket head cap screw, 5. hollow lead, 6. copper sleeve, 6-1. oval foramen, 6-2. axial blind hole, 6-3. copper sleeve ring flange.
Embodiment
Insulating joint as Fig. 2 Fig. 3 a kind of inner-cooled hollow lead shown in Figure 4, the hollow lead 5 that is used for winding is connected with the insulation of cooling system, insulating joint has stainless joint 1, ceramic insulator 3 and copper sleeve 6, stainless joint 1 inside has the through hole that is communicated with the pipeline of cooling system, ceramic insulator 3 inside are provided with the axially extending bore 3-3 that is communicated with the through hole of stainless joint 1, copper sleeve 6 ends have two and are used for the oval foramen 6-1 that hollow lead 5 radially inserts, copper sleeve 6 inside are provided with the axial blind hole 6-2 that is communicated with hollow lead 5 inner cores, and axial blind hole 6-2 one end is communicated with the axially extending bore 3-3 of ceramic insulator 3.The conductor of hollow lead 5 and copper sleeve 6 are welded to connect, and have guaranteed that the electrical connection between the hollow lead 5 is reliable and stable.Copper sleeve 6 is made by electric conductivity good fine copper or copper alloy, and ceramic insulator 3 is made by the good ceramic material of insulation property.
The axially extending bore 3-3 both sides of ceramic insulator 3 are provided with sealed step 3-2, place metallic packing ring 2 in the sealed step 3-2, and the height of metallic packing ring 2 is higher than the degree of depth of sealed step 3-2 under the nature.Metallic packing ring 2 adopts the good alloy material of plastic property to make.Metallic packing ring 2 can bear bigger pressure, also is difficult for impairedly or aging under higher temperature conditions, has guaranteed the sealing property of insulating joint.
Be connected with cooling system when stainless joint 1 uses, be connected reliably with the pipeline of cooling system by the mode of welding or be threaded.
The concrete connection when using, stainless joint 1 is connected with cooling system, the through hole of stainless joint 1 inside is communicated with cooling pipe, the axial blind hole 6-2 of copper sleeve 6 is the runner of coolant, the through hole of coolant through the axially extending bore 3-3 of the axial blind hole 6-2 of copper sleeve 6, ceramic insulator 3, stainless joint 1 inside flows out or enters hollow lead 5 inner cores, the heat that produces in the winding work with hollow lead 5 compositions is taken out of, realizes the cooling of winding.
The utility model is simple in structure, technology is convenient to operation, make being connected of the winding of inner-cooled generator and cooling system simple and reliable, not only be electrically connected reliable and stablely between the lead of motor windings, and coolant is difficult for leaking, and the while can guarantee the stable operation of motor cooling system.
Claims (7)
1. the insulating joint of an inner-cooled hollow lead, being used for hollow lead (5) is connected with the insulation of cooling system, it is characterized in that: described insulating joint has stainless joint (1), ceramic insulator (3) and copper sleeve (6), described stainless joint (1) inside has the through hole that is communicated with the pipeline of cooling system, fixedly connected with copper sleeve (6) with stainless joint (1) respectively in ceramic insulator (3) two ends, ceramic insulator (3) inside is provided with the axially extending bore (3-3) that is communicated with the through hole of stainless joint (1), described copper sleeve (6) end has one or more and is used for the oval foramen (6-1) that hollow lead (5) radially inserts, described copper sleeve (6) inside is provided with the axial blind hole (6-2) that is communicated with hollow lead (5) inner core, axial blind hole (6-2) end is communicated with the axially extending bore (3-3) of ceramic insulator (3), and the conductor of described hollow lead (5) is electrically connected with copper sleeve (6).
2. the insulating joint of a kind of inner-cooled hollow lead according to claim 1 is characterized in that: described copper sleeve (6) is made by fine copper or copper alloy, and described ceramic insulator (3) is made by ceramic material.
3. the insulating joint of a kind of inner-cooled hollow lead according to claim 1 is characterized in that: the conductor of described hollow lead (5) with the mode that copper sleeve (6) is electrically connected is: the conductor of described hollow lead (5) and copper sleeve (6) are welded to connect.
4. the insulating joint of a kind of inner-cooled hollow lead according to claim 1, it is characterized in that: the surperficial symmetry of described ceramic insulator (3) has the groove that a side does not connect more than two, the opening direction of corresponding two grooves is opposite, place trip bolt in the groove, ceramic insulator (3) is fixedlyed connected with the copper sleeve ring flange (6-3) of copper sleeve (6) by the trip bolt in the groove, and ceramic insulator (3) is fixedlyed connected with the stainless joint ring flange (1-1) of stainless joint (1) by the trip bolt in the corresponding recesses.
5. the insulating joint of a kind of inner-cooled hollow lead according to claim 4, it is characterized in that: described ceramic insulator (3) is external diameter and the corresponding cylinder of copper sleeve ring flange (6-3), described trip bolt is soket head cap screw (4), and described groove has the cavity that can hold the screwing tool that is used to screw soket head cap screw (4).
6. the insulating joint of a kind of inner-cooled hollow lead according to claim 1, it is characterized in that: axially extending bore (3-3) both sides of described ceramic insulator (3) are provided with sealed step (3-2), place metallic packing ring (2) in the sealed step (3-2), the height of metallic packing ring under the nature (2) is higher than the degree of depth of sealed step (3-2).
7. the insulating joint of a kind of inner-cooled hollow lead according to claim 6 is characterized in that: described metallic packing ring (2) adopts the alloy material with plastic property to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202747806U CN201774334U (en) | 2010-07-28 | 2010-07-28 | Insulating joint of inner cooled hollow wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202747806U CN201774334U (en) | 2010-07-28 | 2010-07-28 | Insulating joint of inner cooled hollow wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774334U true CN201774334U (en) | 2011-03-23 |
Family
ID=43754171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202747806U Expired - Lifetime CN201774334U (en) | 2010-07-28 | 2010-07-28 | Insulating joint of inner cooled hollow wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774334U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938174A (en) * | 2010-07-28 | 2011-01-05 | 江苏新誉重工科技有限公司 | Insulating joint of inner cooled hollow lead wire |
| US11258325B2 (en) | 2018-10-23 | 2022-02-22 | General Electric Company | Articles including insulated conductors and systems thereof |
-
2010
- 2010-07-28 CN CN2010202747806U patent/CN201774334U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938174A (en) * | 2010-07-28 | 2011-01-05 | 江苏新誉重工科技有限公司 | Insulating joint of inner cooled hollow lead wire |
| US11258325B2 (en) | 2018-10-23 | 2022-02-22 | General Electric Company | Articles including insulated conductors and systems thereof |
| US12003154B2 (en) | 2018-10-23 | 2024-06-04 | General Electric Company | Articles including insulated conductors and systems thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110323 Effective date of abandoning: 20130327 |
|
| RGAV | Abandon patent right to avoid regrant |