CN105024468A - Axial-flux motor core device with water cooling structure - Google Patents
Axial-flux motor core device with water cooling structure Download PDFInfo
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- CN105024468A CN105024468A CN201410155394.8A CN201410155394A CN105024468A CN 105024468 A CN105024468 A CN 105024468A CN 201410155394 A CN201410155394 A CN 201410155394A CN 105024468 A CN105024468 A CN 105024468A
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Abstract
The invention discloses an axial-flux motor core device with a water cooling structure. The device comprises a stator core machined in a segmental manner, a core fixing block, an S-shaped spring, a cooling water pipe pressing plate, and a cooling water pipe. The front end of the core is provided with a groove, and the open side of the groove is clamped to the core fixing block. The cooling water pipe passes through the groove, and closely fits the other side of the groove. One side of the cooling water pipe pressing plate closely fits the outer wall of the cooling water pipe, and the other side is a plane and contacts the S-shaped spring. The S-shaped spring is fixed between the cooling water pipe pressing plate and the core fixing block, and is always in a compressed state. The spring presses the cooling water pipe pressing plate. According to the invention, the problems in the existing axial-flux motor stator core such as high cooling difficulty, complex structure, high processing difficulty and high cost are solved, and the structure has very good installation extension performance and can satisfy the requirements of high-power axial-flux motor installing and cooling.
Description
Technical field
The invention belongs to axial-flux electric machine field, more specifically, relate to a kind of axial-flux electric machine iron core apparatus with water-cooling structure.
Background technology
The processing of existing axial-flux electric machine iron core adopts the mode of " punching ", " volume ", and utilize servosystem control flume distance, jet-bedding on silicon steel sheet, is then rolled into tray type structure.Such as number of patent application is the manufacture method that patent document discloses a kind of disk type motor stator core of CN200810041184.0, the method is the electrical sheet winding of band shape electrical sheet being processed into one fixed width, be arranged on the take-off reel of slotting winding machine tool, electrical sheet winding timing is entered feeding table by take-off reel, by feeding table, stamping die is sent in electrical sheet winding and go out flute profile, rush the electrical sheet winding after flute profile on closed reel, be wound into iron core dish, above processing method is single jet-bedding in individual layer winding, and then wind up, process velocity is slower, and coiling and molding aft-loaded airfoil face smoothness is poor, burr is many.Number of patent application be CN200920117995.4 patent document discloses a kind of major diameter disc iron automatic processing device, comprise feeding mechanism, notching mechanism and winding mechanism, first feeding mechanism carries out leveling to silicon strip, and use high accuracy servo system that jet-bedding is synchronous with winding process, greatly can reduce wrap around error.But above-mentioned relate to rush volume device structure complicated, process velocity is slower, and when axial magnetic flux iron core diameter increases, need the winding frock that processing is different in addition, if diameter is more than 2 meters, the feeder of silicon strip and the precision of winding mechanism are difficult to control, and processing plane smoothness is poor simultaneously, be unfavorable for integrated cooling pipe, therefore hinder the popularization of axial-flux electric machine.
Summary of the invention
For the defect of prior art, for solving existing axial magnetic flux iron core cooling problem, be convenient to the installation of centralized winding, this patent proposes a kind of axial-flux electric machine iron core apparatus with water-cooling structure simultaneously.
This iron core apparatus comprises iron core fixed block, S shape spring leaf, cooling water pipe pressing plate, cooling water pipe and iron core, and described rod nose portion has groove, and described groove opening side and described iron core fixed block are connected together; Described cooling water pipe runs through described groove, fits tightly with described groove opposite side; Described cooling water pipe pressing plate one side and described cooling water pipe outer wall fit tightly, and another side is plane, contact with described S shape spring leaf; Described S shape spring leaf is fixed between described cooling water pipe pressing plate and described iron core fixed block, and normality is in compressive state, the fixing cooling water pipe pressing plate of spring force compression;
Described iron core adopts multiple axial stator lamination to superpose composition, and described stator lasmination has through hole, and the superposition for stator lasmination is fixed; Described stator lasmination also has another one through hole, consists of the groove of iron core apparatus after this through hole superposition on lamination;
Described iron core apparatus also comprises and is positioned at built-in electrical insulation end cap on the upside of iron core apparatus and downside exterior insulation end cap, for the integrated installation of described iron core apparatus;
Described stator lasmination also has location hole, for the stationary positioned of described built-in electrical insulation end cap and exterior insulation end cap;
Further, described groove is dove-tail form, and described iron core fixing device is dove-tail form tenon;
Further, described cooling water pipe adopts copper pipe to make, and one end of described cooling water pipe pressing plate has the arc-shaped slot with copper pipe same radius, contacts with arc surface with cooling water pipe;
Further, described S shape spring leaf adopts spring steel to make;
Further, described inside and outside insulated end cover adopts insulation non-magnet_conductible material to make, and the side contacted with iron core apparatus is plane, and opposite side is cambered surface;
Further, described planar side is designed with positioning boss, location during for installing.
Generally speaking, axial-flux electric machine iron core water-cooled general structure design of the present invention has simple and reliable, the advantage such as handling ease, low cost of manufacture and good cooling results, solve current axial-flux electric machine stator core cooling difficulty, complex structure, processing difficulties and high in cost of production problem, this structure has and well installs scalability simultaneously, can meet the installation of high-power axial-flux electric machine and the requirement of cooling.
Accompanying drawing explanation
Fig. 1 is according to the general structure schematic diagram with the axial-flux electric machine iron core of water-cooling structure of the present invention;
Fig. 2 is the structural representation of iron core stator lasmination;
Fig. 3 is the overall structure schematic diagram of iron core;
Fig. 4 a is the structural representation of the iron core fixing device having screwed hole;
Fig. 4 b is the structural representation of the iron core fixing device not having screwed hole;
Fig. 5 a is the structural representation of cooling water pipe;
Fig. 5 b is the structural representation of cooling water pipe pressing plate;
Fig. 6 is the structural representation of S shape spring leaf;
Fig. 7 a is the structural representation of inside and outside insulated end cover;
Fig. 7 b is the structural representation of inside and outside insulated end cover.
Wherein:
1-iron core fixed block; 2-S shape spring leaf; 3-cooling water pipe pressing plate; 4-cooling water pipe; 5-built-in electrical insulation end cap; 6-iron core; 7-exterior insulation end cap; 8,10-through hole; 9-location hole; 11-notch; 12-positioning boss; 13-groove
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 is according to the general structure schematic diagram with the axial-flux electric machine iron core of water-cooling structure of the present invention.As shown in Figure 1, this iron core comprises iron core fixed block 1, S shape spring leaf 2, cooling water pipe pressing plate 3, cooling water pipe 4, built-in electrical insulation end cap 5, iron core 6 and exterior insulation end cap 7, iron core 6 has the groove 13 of given shape, groove 13 side is designed to swallow-tail form, is connected with swallow-tail form iron core fixed block 1; Opposite side is designed to circular arc, and cooling water pipe 4 runs through notch curved side, fits tightly with iron core 6.Cooling water pipe pressing plate 3 one end is designed to arc contact surface, and fit tightly with cooling water pipe 4 outer wall, other end is designed to plane, contacts with S shape spring 2.S shape spring 2 is fixed between cooling water pipe pressing plate 3 and iron core fixed block 1, normality is in compressive state, spring force compression cooling water pipe pressing plate, increase cooling water pipe and the pressure between pressing plate and iron core, frictional force is utilized to fix cooling water pipe, prevent in running, the play of cooling water pipe, damping vibration and noise.
The structure composition of iron core stator lasmination is concrete as shown in Figure 2, and iron core adopts axial lamination to form, and each lamination has corresponding hole and groove, and as shown in Figure 2, its effect is as follows: through hole 8 and through hole 10, available bolted silicon steel sheet for stator lasmination; Location hole 9, for the location of built-in electrical insulation end cap and exterior insulation end cap; Notch 11 lays cooling water pipe 4 and secured core fixed block 1 for the groove 13 superposing rear formation iron core apparatus.
Because iron core distributes along stator fixed disk surface perimeter, so the shape of iron core also should radially distribute, as shown in Figure 3, finally shaping every a slice composition silicon steel sheet is made to vary in size like this, this patent adopts two kinds of processing methods to manufacture such iron core: method one size of silicon steel sheet is made equally, carry out the processing of milling pin in entirety after building up iron core, make iron core entirety shaping for the last time; Method two makes different by silicon steel sheet size, the silicon steel sheet size dimension of relevant radii position is calculated according to actual compact dimensions, as standard machine silicon steel disc, finally the silicon steel sheet of different size is built up iron core by corresponding rule, iron core also can adopt compound soft magnetic material (SMC) to suppress and form.
Iron core fixing device is dove-tail form tenon, can have two kinds of versions according to fixed form: the first is the tenon having screwed hole, and iron core fixing device and stator fixed disk are bolted, as shown in Fig. 4 (a); The second is not open the tenon of screwed hole, and iron core fixing device and stator fixed disk are welded and fixed, as shown in Fig. 4 (b).The tenon having screwed hole is used to be that core assembly is fixed by screws in casing; When using not open the tenon of screwed hole, tenon be welded on casing or casing casting time processing.
The material of cooling water pipe adopts copper pipe to make, and as shown in Fig. 5 (a), copper ductility is good, easily processes, simultaneously the excellent good cooling results of thermal conduction characteristic of copper.Cooling water pipe pressing plate, one end has the arc-shaped slot with copper pipe same radius, as shown in Fig. 5 (b), can contact with arc surface with cooling water pipe, contact area is large, applies certain pressure, the frictional force between contact-making surface can be utilized to fix water pipe, anti-antipriming pipe axially descends play along water pipe, the vibration & noise of anti-antipriming pipe.
S shape spring leaf 2 material spring steel, has good toughness, utilizes stalloy, make S shape (also claiming waveform) spring leaf, as shown in Figure 6.S shape spring leaf, by applying certain extruding force to S surface, spring leaf produces strain, so just produces elastic restoring force, so just can be used for fastening machines parts.
Inside and outside insulated end cover 5,7 adopts insulation non-magnet_conductible material to make, and planar side is designed with positioning boss 12, when mounted for location, simple installation and more accurate can be made, opposite side is designed to arc, and coil can be made to seamlessly transit when this is wound around, and reduces folding stress.External insulation end cover designs is consistent, and just vary in size, what Fig. 7 (a) (b) showed is interior collets.Wherein built-in electrical insulation end cap is placed on iron core small end face place, and exterior insulation end cap is placed on the large end face place of iron core, is wound in as a whole finally by winding.Interior outer end insulating lid can also be replaced by the material of other shapes.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. one kind has the axial-flux electric machine iron core apparatus of water-cooling structure, it is characterized in that: this iron core apparatus comprises iron core fixed block (1), S shape spring leaf (2), cooling water pipe pressing plate (3), cooling water pipe (4) and iron core (6), described iron core (6) leading section has groove (13), and described groove (13) opening side and described iron core fixed block (1) are connected together; Described cooling water pipe (4) runs through described groove (13), fits tightly with described groove (13) opposite side; Described cooling water pipe pressing plate (3) side and described cooling water pipe (4) outer wall fit tightly, and another side is plane, contact with described S shape spring leaf (2); Described S shape spring leaf (2) is fixed between described cooling water pipe pressing plate (3) and described iron core fixed block (1), normality is in compressive state, and spring force compresses cooling water pipe pressing plate (3) thus fixing cooling water pipe (4).
2. there is the axial-flux electric machine iron core apparatus of water-cooling structure as claimed in claim 1, it is characterized in that, described iron core (6) adopts multiple axial stator lamination to superpose composition, and each stator lasmination has through hole (8), (10), and the superposition for stator lasmination is fixed; Described stator lasmination also has notch (11), consists of described groove (13) after notch (11) superposition on lamination.
3. there is the axial-flux electric machine iron core apparatus of water-cooling structure as claimed in claim 2, it is characterized in that, this iron core apparatus also comprises the exterior insulation end cap (7) being positioned at built-in electrical insulation end cap (5) on the upside of described iron core apparatus and downside, for the integrated installation of described iron core apparatus.
4. there is the axial-flux electric machine iron core apparatus of water-cooling structure as claimed in claim 3, it is characterized in that, each stator lasmination also has location hole (9), for the stationary positioned of described built-in electrical insulation end cap (5) and exterior insulation end cap (7).
5. as the axial-flux electric machine iron core apparatus with water-cooling structure in claim 1-4 as described in any one, it is characterized in that, one end face of described cooling water pipe pressing plate (3) has the arc-shaped slot with cooling water pipe (4) same radius, and cooling water pipe is with arc surface close contact.
6. as the axial-flux electric machine iron core apparatus with water-cooling structure in claim 1-4 as described in any one, it is characterized in that, described notch (13) is dove-tail form, and described iron core fixed block (1) is dove-tail form tenon.
7. as the axial-flux electric machine iron core apparatus with water-cooling structure in claim 1-4 as described in any one, it is characterized in that, described S shape spring leaf adopts spring steel to make.
8. the axial-flux electric machine iron core apparatus with water-cooling structure as described in claim 3 or 4, it is characterized in that, described inside and outside insulated end cover (5) (7) adopts insulation non-magnet_conductible material to make, and the side contacted with described iron core apparatus is plane, and another side is cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155394.8A CN105024468B (en) | 2014-04-17 | 2014-04-17 | A kind of axial-flux electric machine iron core apparatus with water-cooling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155394.8A CN105024468B (en) | 2014-04-17 | 2014-04-17 | A kind of axial-flux electric machine iron core apparatus with water-cooling structure |
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| CN105024468A true CN105024468A (en) | 2015-11-04 |
| CN105024468B CN105024468B (en) | 2017-12-08 |
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| CN201410155394.8A Active CN105024468B (en) | 2014-04-17 | 2014-04-17 | A kind of axial-flux electric machine iron core apparatus with water-cooling structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070021A (en) * | 2017-02-24 | 2017-08-18 | 康富科技股份有限公司 | A kind of iron core type water-cooled generator |
| CN110429762A (en) * | 2019-08-14 | 2019-11-08 | 浙江特种电机有限公司 | New-energy automobile ultra-high efficient motor cooling system loop structure and its installation method |
| CN111668947A (en) * | 2020-06-08 | 2020-09-15 | 齐鲁工业大学 | Cooling system and disc type motor with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6423736A (en) * | 1987-07-20 | 1989-01-26 | Hitachi Ltd | Stator of electrical rotating machine |
| WO2003012955A1 (en) * | 2001-07-31 | 2003-02-13 | Alstom | Stator assembly |
| CN101379677A (en) * | 2006-02-06 | 2009-03-04 | 西门子公司 | Cooling device for an electric machine electric machines with such a cooling device core sheet and production method for such electric machines |
| CN201742181U (en) * | 2010-06-25 | 2011-02-09 | 武汉登奇机电技术有限公司 | Motor with embedded liquid cooling pipelines |
| WO2013166372A1 (en) * | 2012-05-04 | 2013-11-07 | Comprehensive Power, Inc. | Device and method for cooling electric device having modular stators |
-
2014
- 2014-04-17 CN CN201410155394.8A patent/CN105024468B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6423736A (en) * | 1987-07-20 | 1989-01-26 | Hitachi Ltd | Stator of electrical rotating machine |
| WO2003012955A1 (en) * | 2001-07-31 | 2003-02-13 | Alstom | Stator assembly |
| CN101379677A (en) * | 2006-02-06 | 2009-03-04 | 西门子公司 | Cooling device for an electric machine electric machines with such a cooling device core sheet and production method for such electric machines |
| CN201742181U (en) * | 2010-06-25 | 2011-02-09 | 武汉登奇机电技术有限公司 | Motor with embedded liquid cooling pipelines |
| WO2013166372A1 (en) * | 2012-05-04 | 2013-11-07 | Comprehensive Power, Inc. | Device and method for cooling electric device having modular stators |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070021A (en) * | 2017-02-24 | 2017-08-18 | 康富科技股份有限公司 | A kind of iron core type water-cooled generator |
| CN110429762A (en) * | 2019-08-14 | 2019-11-08 | 浙江特种电机有限公司 | New-energy automobile ultra-high efficient motor cooling system loop structure and its installation method |
| CN110429762B (en) * | 2019-08-14 | 2024-05-03 | 浙江特种电机有限公司 | New energy automobile motor cooling system loop structure and installation method thereof |
| CN111668947A (en) * | 2020-06-08 | 2020-09-15 | 齐鲁工业大学 | Cooling system and disc type motor with same |
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| CN105024468B (en) | 2017-12-08 |
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