CN202206220U - Magnet assembly installed on middle high speed permanent magnet generator runner hub - Google Patents
Magnet assembly installed on middle high speed permanent magnet generator runner hub Download PDFInfo
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- CN202206220U CN202206220U CN2011203047800U CN201120304780U CN202206220U CN 202206220 U CN202206220 U CN 202206220U CN 2011203047800 U CN2011203047800 U CN 2011203047800U CN 201120304780 U CN201120304780 U CN 201120304780U CN 202206220 U CN202206220 U CN 202206220U
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- magnet
- high speed
- runner hub
- speed permanent
- base
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Abstract
The utility model relates to a magnet assembly installed on a middle high speed permanent magnet generator runner hub, comprising a magnet base provided with a magnet and a magnet protection cover made of non magnetic conductive materials and used for covering the magnet cover; the magnet protection cover is provided with fixing screws for fixing the magnet on the magnet base and is connected to the magnet base to form an integrity by welding or bonding. The utility model provides a magnet assembly for fixing a neodymium iron boron magnetic patch of a large quality on the middle high speed permanent magnetism generator runner hub in such a way that the high-power middle high speed permanent magnetism generator runner hub can provide enough magnetic field intensity and fixing magnet to overcome centrifugal force and unilateral magnetic tensile force. Meanwhile the magnetic pole is easy to make into an inclined pole in order to change the pole arc coefficient of the magnetic pole, to minimize the influence of gullet torque and to reduce motor starting torque.
Description
[technical field]
The present invention relates to a kind of neodymium iron boron magnetic body modular construction of permanent magnet generator, particularly relate to a kind of magnet assembly that is used for the big quality of high-power high speed rotor of permanent-magnetic power generator.
[background technology]
High-power high speed permanent magnet generator adopts tile shape or the rectangle neodymium iron boron magnetic body magnetic pole as rotor usually.Magnetic pole is installed on the permanent magnet generator runner hub, and its direction of magnetization is generally radial manner.The method that adhesive bond is generally arranged, the fixedly requirement of magnet that many times can not solve big quality, the fixing problem, the particularly service requirement in 20 years of wind turbine generator that needs to solve centrifugal force and unilateral magnetic force and flow field high temperature of the magnet of big quality.
In the technology formerly, be fixed on the runner hub of rotor for tile shape or rectangle neodymium iron boron magnetic body, the method for employing is that abnormity is made in the bottom surface of neodymium iron boron magnetic body.And will on runner hub, process and the corresponding special-shaped groove of neodymium iron boron magnetic body, the filling bonding agent is bonded and fixed at ndfeb magnetic pole on the runner hub in groove.
Process a through hole in the center of ndfeb magnetic pole in addition, ndfeb magnetic pole is fixed on the runner hub with bolted and the method that adds adhesive bond.Or the method for ndfeb magnet directly being used adhesive bond arranged, with ndfeb magnet be fixed on the magnet mount pad and with this assembly with bolted on runner hub.
The problem that adopts said method will solve high speed rotor of permanent-magnetic power generator magnetic pole centrifugal force and unilateral magnetic force and flow field high temperature just need be fixed with the method for machinery; Also will consider magnetic loss and magnet short-cut path saturation problem simultaneously, it also is very difficult will magnetic pole being made the oblique utmost point that forms an angle with axis in addition.
The present invention is to making in such cases.
[summary of the invention]
High-power high speed rotor of permanent-magnetic power generator magnet the present invention seeks to overcome deficiency of the prior art and a kind of magnet assembly that can the ndfeb magnet of big quality be fixed on the high speed permanent magnet generator runner hub is provided, so that can provide enough magnetic field intensity and fixed magnets to overcome centrifugal force and unilateral magnetic force.Simultaneously can easily magnetic pole be made the oblique utmost point,, reduce the influence of cogging torque, reduce the detent torque of generator to change the pole embrace of magnetic pole.
In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposal:
Be installed in the magnet assembly on the high speed permanent magnet generator runner hub; It is characterized in that including the magnet base; The magnet base is provided with magnet and the magnet over cap of non-magnet material that magnet is covered; The magnet over cap is provided with magnet is fixed on the hold-down screw on the magnet base, and said magnet over cap connects as one through welding or bonding and magnet base.
The aforesaid magnet assembly that is installed on the high speed permanent magnet generator runner hub; It is characterized in that on said magnet over cap, being provided with the fixing screw hole of hiding that is used to hide screw cap when a plurality of magnet assemblies are connected together, on the magnet base with hide the fixing screw hole corresponding section and be provided with counterbore.
The aforesaid magnet assembly that is installed on the high speed permanent magnet generator runner hub is characterized in that said hold-down screw is identical with the number of hiding fixing screw hole.
The aforesaid magnet assembly that is installed on the high speed permanent magnet generator runner hub is characterized in that said hold-down screw and the number of hiding fixing screw hole are 6.
The aforesaid magnet assembly that is installed on the high speed permanent magnet generator runner hub is characterized in that described magnet is a neodymium iron boron magnetic body.
The present invention compared with prior art has following advantage:
The present invention utilizes the magnet over cap that magnet is fixed on the magnet base, and it can provide enough magnetic field intensity and fixed magnets to overcome centrifugal force and unilateral magnetic force well.
Simultaneously can easily magnetic pole be made the oblique utmost point,, reduce the influence of cogging torque, reduce the detent torque of generator to change the pole embrace of magnetic pole.
Have, this is simple and practical again, is easy to promote.
[description of drawings]
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention;
Fig. 3 is an end view of the present invention;
Fig. 4 is the A-A profile of Fig. 1;
Fig. 5 is that two magnet assemblies are installed the cut-away view that links together;
Fig. 6 is that two magnet assemblies are installed the stereogram that links together.
[embodiment]
Describe the present invention below in conjunction with accompanying drawing:
Shown in Fig. 1-4; Be installed in the magnet assembly on the high speed permanent magnet generator runner hub; Include magnet base 1, magnet base 1 is provided with magnet 2 and the magnet over cap 3 of non-magnet material that magnet 2 is covered, and magnet over cap 3 covers magnet 2 and the moving of limit magnet 2 fully.
Magnet over cap 3 is provided with magnet 2 is fixed on the hold-down screw 4 on the magnet base 1, under the effect of hold-down screw 4 magnet 2 is being fixed on the magnet base 1 well.Afterwards, said magnet over cap 3 connects as one through welding or bonding and magnet base 1.Promptly magnet over cap 3 and magnet base 1 are connected as a single entity, magnet 2 is securely fixed on the magnet base 1 very much through welding or bonding method.
As the optimal way of present embodiment, on said magnet over cap 3, be provided be used to hide screw cap when a plurality of magnet assemblies are connected together hide fixing screw hole 5, on magnet base 1 with hide fixing screw hole 5 corresponding sections and be provided with counterbore.
Like Fig. 5, shown in 6, when magnet assembly and another magnet assembly are arranged and are connected, the screw cap of the hold-down screw 4 of one of them magnet assembly with insert the hiding in the counterbore on fixing screw hole 5 and the magnet base 1 of another magnet assembly.Two adjacent magnet assemblies are closely arranged.
As the optimal way of present embodiment, said hold-down screw 4 is identical with the number of hiding fixing screw hole 5.
Further, said hold-down screw 4 is 6 with the number of hiding fixing screw hole 5, and is as shown in Figure 2.
As the optimal way of present embodiment, described magnet 2 is neodymium iron boron magnetic body or other magnet.
With a plurality of magnet assemblies arrange assemble after, add at outer surface and to cover the anti-corrosion protection lacquer, assembly is formed protective layer.
A kind of magnet assembly installation method, including the following step gathers:
At first, magnet is placed on the magnet base, makes the periphery of magnet aim at magnet base 1 lip-deep periphery.
Secondly, the magnet over cap of non-magnet material is inserted in magnet, makes the magnet over cap cover magnet fully, utilize hold-down screw to pass the magnet over cap and be screwed on the magnet base, magnet is fixed on the magnet base.
Its three, couple together between magnet over cap and the magnet base, magnet over cap and magnet base are connected as a single entity.
They are four years old; Side at the magnet over cap is provided with the fixing screw hole of hiding that is used to hide the hold-down screw cap when a plurality of magnet over caps connect together successively; On the magnet base with hide the fixing screw hole corresponding section and also be provided with counterbore; Also some places counterbore to the hold-down screw cap, arrives this, accomplishes magnet assembly and installs.
Shown in Fig. 5-6, when magnet assembly and another magnet assembly are arranged and are connected, the screw cap of the hold-down screw of one of them magnet assembly and insert the hiding in the counterbore on fixing screw hole and the magnet base of another magnet assembly.Two adjacent magnet assemblies are closely arranged.
As the optimal way of present embodiment, said magnet over cap and magnet base are connected as a single entity be adopt welding or bonding process.Make it to guarantee the dimensional uniformity of neodymium iron boron magnetic body assembly.
As the optimal way of present embodiment, after accomplishing the magnet assembly installation, be coated with the anti-corrosion protection lacquer at its outer surface, assembly is formed protective layer.
Above embodiment is the structure and the installation method thereof of magnet assembly; This embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention, the technical staff in relevant technologies field is without departing from the spirit and scope of the present invention; Various conversion or modification be can also make, as different magnetic materials, non-magnet material, bonding agent, protective layer material etc. adopted.Therefore, all technical schemes that are equal to also should belong to category of the present invention.
Claims (5)
1. be installed in the magnet assembly on the high speed permanent magnet generator runner hub; It is characterized in that including magnet base (1); Magnet base (1) is provided with magnet (2) and the magnet over cap (3) of non-magnet material that magnet (2) is covered; Magnet over cap (3) is provided with magnet (2) is fixed on the hold-down screw (4) on the magnet base (1), and said magnet over cap (3) connects as one through welding or bonding and magnet base (1).
2. the magnet assembly that is installed on the high speed permanent magnet generator runner hub according to claim 1; It is characterized in that on said magnet over cap (3), being provided be used to hide screw cap when a plurality of magnet assemblies are connected together hide fixing screw hole (5), go up and hide fixing screw hole (5) corresponding section and be provided with counterbore at magnet base (1).
3. the magnet assembly that is installed on the high speed permanent magnet generator runner hub according to claim 2 is characterized in that said hold-down screw (4) is identical with the number of hiding fixing screw hole (5).
4. the magnet assembly that is installed on the high speed permanent magnet generator runner hub according to claim 3 is characterized in that said hold-down screw (4) and the number of hiding fixing screw hole (5) are 6.
5. according to the described magnet assembly that is installed on the high speed permanent magnet generator runner hub of each claim of claim 1-4, it is characterized in that described magnet (2) is a neodymium iron boron magnetic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203047800U CN202206220U (en) | 2011-08-19 | 2011-08-19 | Magnet assembly installed on middle high speed permanent magnet generator runner hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203047800U CN202206220U (en) | 2011-08-19 | 2011-08-19 | Magnet assembly installed on middle high speed permanent magnet generator runner hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206220U true CN202206220U (en) | 2012-04-25 |
Family
ID=45970316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203047800U Expired - Lifetime CN202206220U (en) | 2011-08-19 | 2011-08-19 | Magnet assembly installed on middle high speed permanent magnet generator runner hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206220U (en) |
-
2011
- 2011-08-19 CN CN2011203047800U patent/CN202206220U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528437 Torch Road, Torch Development Zone, Guangdong, Zhongshan, No. 22 Patentee after: Ming Yang wisdom Energy Group AG Address before: 22 Ming Yang Industrial Zone, Torch Road, torch hi tech Industrial Development Zone, Guangdong, Zhongshan 528400, China Patentee before: Guangdong Mingyang Wind Power Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |