CN210577979U - Stator unit fixing structure, stator assembly and axial magnetic field motor - Google Patents
Stator unit fixing structure, stator assembly and axial magnetic field motor Download PDFInfo
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- CN210577979U CN210577979U CN201922037165.7U CN201922037165U CN210577979U CN 210577979 U CN210577979 U CN 210577979U CN 201922037165 U CN201922037165 U CN 201922037165U CN 210577979 U CN210577979 U CN 210577979U
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Abstract
The utility model discloses a stator unit fixed knot constructs, stator module and axial magnetic field motor belongs to the motor field. The stator unit is U-shaped, the stator unit fixing structure comprises a first annular mounting plate, a circle of first positioning holes for mounting the magnetic poles at the outer side of the stator unit are formed in the first annular mounting plate, and a circle of second positioning holes for mounting the magnetic poles at the inner side of the stator unit are formed in the first annular mounting plate; the stator unit fixing structure further comprises a second annular mounting plate or a casing; a circle of third positioning holes for mounting the yoke parts of the stator units are formed in the second annular mounting plate; or a circle of fourth positioning holes for mounting the yoke part of the stator unit are formed in the end face of the machine shell. The utility model discloses a two stator axial magnetic field motor's of single rotor sectional type stators provides fixed knot and constructs to fixed mode is simple, and is fixed firm, and positioning accuracy is high.
Description
Technical Field
The utility model relates to the field of electric machines, especially indicate a stator unit fixed knot constructs, stator module and axial magnetic field motor.
Background
An axial magnetic field motor, also called an axial flux motor or a disc motor, has a stator assembly and a rotor assembly in a disc structure. The air gap of the axial magnetic field motor is planar, the air gap magnetic field is axial, and the axial magnetic field motor has the advantages of compact structure, small volume, light weight and high torque density.
Axial field motors generally have several configurations: 1. single rotor and single stator: a stator assembly and a rotor assembly (single sided air gap); 2. double-rotor single-stator: two rotor assemblies, one stator assembly in between (double-sided air gap); 3. single rotor double stator: two stator assemblies, one rotor assembly in the middle (double-sided air gap); 4. multi-rotor multi-stator: a plurality of stator assemblies and a plurality of rotor assemblies are interleaved (multi-faceted air gap).
Chinese patent document CN107408875A discloses an axial flux motor in the form of a double-rotor single stator, the stator being of a yoke-free segmented structure, including a plurality of stator units composed of stator bars and coils, and providing a fixing structure of the stator units: the stator unit is enclosed by the stator housing around the inside of the stator housing.
However, the fixing structure of the stator unit of the patent is only suitable for the form of a double-rotor single-stator, and for the axial magnetic field motor with a single rotor and a double-stator, if the stator is a segmented structure, the fixing structure of the patent is not suitable, and the structure for effectively fixing the segmented stator of the axial magnetic field motor with the single rotor and the double-stator is not given in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a stator unit fixed knot constructs, stator module and axial magnetic field motor, the utility model discloses a two stator axial magnetic field motor's of single rotor sectional type stators provides fixed knot and constructs to fixed mode is simple, and is fixed firm, and positioning accuracy is high.
The utility model provides a technical scheme as follows:
a stator unit fixing structure, the stator unit being U-shaped, wherein:
the stator unit fixing structure comprises a first annular mounting plate, a circle of first positioning holes for mounting the magnetic poles at the outer side of the stator unit are formed in the first annular mounting plate, and a circle of second positioning holes for mounting the magnetic poles at the inner side of the stator unit are formed in the first annular mounting plate;
the stator unit fixing structure further comprises a second annular mounting plate or a casing; a circle of third positioning holes for mounting the yoke parts of the stator units are formed in the second annular mounting plate; or a circle of fourth positioning holes for mounting the yoke part of the stator unit are formed in the end face of the machine shell.
Furthermore, a positioning pin hole is formed in the first annular mounting plate.
Furthermore, the end faces of the second annular mounting plate and the casing are provided with an air outlet and a glue filling opening.
Furthermore, the third positioning hole is communicated with the inner circle space of the second annular mounting plate, and a limiting structure is arranged on the inner side of the third positioning hole.
Furthermore, the stator unit fixing structure is made of a non-magnetic material.
Furthermore, the second annular mounting plate and the casing are made of aluminum alloy, and the first annular mounting plate is made of plastic.
Further, the first positioning hole, the second positioning hole and the third positioning hole are through holes, and the fourth positioning hole is a counter bore.
A stator assembly comprising a plurality of U-shaped stator units and the aforementioned stator unit fixing structure, wherein:
the outer magnetic pole of the stator unit is inserted into the first positioning hole, and the inner magnetic pole of the stator unit is inserted into the second positioning hole; the stator unit yoke is inserted into the third positioning hole or the fourth positioning hole.
Further, glue is filled between the first annular mounting plate and the second annular mounting plate for fixation and sealing, and an inner circle of the stator assembly is reserved; or, glue is filled between the first annular mounting plate and the casing for fixing and sealing, and an inner circle of the stator assembly is reserved.
An axial magnetic field motor comprises a rotor assembly and two stator assemblies, wherein the two stator assemblies are respectively arranged on two sides of the rotor assembly.
The utility model discloses following beneficial effect has:
the utility model discloses use the magnetic pole one end of the fixed stator unit of first annular mounting panel installation, use the yoke portion one end of the fixed stator unit of second annular mounting panel or casing installation to fix a position through the mode of locating hole. The utility model discloses a two stator axial magnetic field motor's of single rotor sectional type stators provides fixed knot and constructs to fixed mode is simple, and is fixed firm, and positioning accuracy is high.
Drawings
FIG. 1 is an exemplary illustration of a U-shaped stator unit;
fig. 2 is an exemplary view of a stator unit fixing structure (stator assembly) according to the present invention;
fig. 3 is another exemplary view of the stator unit fixing structure (stator assembly) of the present invention;
fig. 4 is an exemplary view of a housing.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a stator unit fixed knot constructs 100, the utility model is suitable for a stator unit 200 of U-shaped. Fig. 1 shows a typical example of a U-shaped stator unit 200 including a U-shaped magnetic core 210 and a coil winding 220 disposed on the U-shaped magnetic core. The two end faces on the two arms 230 of the U-shaped stator unit are the two magnetic poles 241, 242 of the stator unit, which are mounted radially inside and outside, the inner one being the inner magnetic pole 241 and the outer one being the outer magnetic pole 242. The portion of the U-shaped stator unit 200 connecting the two arms 230 is the yoke portion 250 of the stator unit 200.
"interior" and "outer" be based on radially and decide with motor shaft's distance, radially be close to motor shaft and be "interior", radially keep away from motor shaft and be "outer".
As shown in fig. 2 to 3, the stator unit fixing structure 100 includes a first annular mounting plate 110, a first positioning hole 111 for mounting the outer magnetic pole 242 of the stator unit 200 is formed on the first annular mounting plate 110, and a second positioning hole 112 for mounting the inner magnetic pole 241 of the stator unit 200 is formed on the first annular mounting plate 110.
The utility model discloses use the magnetic pole one end of the fixed stator unit of first annular mounting panel installation, when the equipment, insert first locating hole with the outside magnetic pole of stator unit, inboard magnetic pole inserts the second locating hole, can accomplish the installation of stator unit magnetic pole one end fixed.
The stator unit fixing structure 100 further includes a second annular mounting plate 120 or a housing 130; the housing 130 is a portion of the overall motor housing. The second annular mounting plate 120 is provided with a circle of third positioning holes 121 for mounting the yokes 250 of the stator unit 200. Alternatively, a circle of fourth positioning holes 131 for mounting the yoke portion 250 of the stator unit 200 is formed in the end surface of the casing 130.
The utility model discloses use the yoke portion one end of the fixed stator unit of second annular mounting panel or casing installation, when the equipment, insert third locating hole or fourth locating hole with the yoke portion of stator unit, can accomplish the installation of stator unit yoke portion one end fixed.
The utility model discloses use the magnetic pole one end of the fixed stator unit of first annular mounting panel installation, use the yoke portion one end of the fixed stator unit of second annular mounting panel or casing installation to fix a position through the mode of locating hole. The utility model discloses a two stator axial magnetic field motor's of single rotor sectional type stators provides fixed knot and constructs to fixed mode is simple, and is fixed firm, and positioning accuracy is high.
The utility model discloses be provided with location pinhole 113 on first annular mounting panel 110, the location pinhole is used for being connected through locating pin and motor casing, the circumferential motion of stator before the main restriction.
In order to further increase the firmness of the fixation of the stator unit, the first annular mounting plate and the second annular mounting plate can be sealed by pouring glue, or the first annular mounting plate and the casing can be sealed by pouring glue. At this time, as shown in fig. 2 to 4, the end surfaces of the second annular mounting plate 120 and the casing 130 are provided with an air outlet 122 (or 132) and a glue filling port 123 (or 133). And (5) pouring the glue through the glue pouring port, and vacuumizing through the air outlet to remove air bubbles generated by glue pouring. After glue filling, an inner circle of the stator is reserved in the center, namely the glue filling is not carried out on the inner circle. The inner circle space can be provided with a brake and other devices, and the brake is arranged in the inner circle of the stator, so that the axial length of the motor can be reduced.
The second annular mounting plate can be further provided with a wiring hole (not shown in the figure) for the embedded pipe to pass through, the embedded pipe passes through the wiring hole and then is connected with the junction box, and the wiring of the brake and other equipment is connected with the junction box in the embedded pipe.
Preferably, different numbers of the potting openings and the air outlets are formed according to the properties of the potting adhesive, for example, the number of the openable air outlets is not less than the number of the stator units due to poor flowability of the adhesive, as shown in fig. 4, each fourth positioning hole is provided with an air outlet. For example, the pectin has better fluidity and can be vacuumized by opening fewer air outlets.
As shown in fig. 2-3, a support structure 115 with a certain width is disposed between the second positioning hole 112 of the first annular mounting plate 110 and the inner circular space 114 of the first annular mounting plate 110, and the second positioning hole 112 is not communicated with the inner circular space 114 of the first annular mounting plate 110, so that the support structure 115 can increase the structural strength of the first annular mounting plate 110.
The third positioning hole 121 communicates with the inner circular space 124 of the second annular mounting plate 120, and there is no support structure between the third positioning hole and the inner circular space of the second annular mounting plate. The brake is installed in the inner circle space of the third positioning hole, and in order to reduce the size of the motor, the inner circle space of the third positioning hole is limited, the interval between the inner circle space of the third positioning hole and the outer circle of the brake is extremely small, and a supporting structure cannot be arranged. In order to limit the yoke of the stator unit without a support structure, a limit structure 125 is disposed inside the third positioning hole 121. The utility model discloses a radial space of structure compression as far as possible of third locating hole reduces the motor size.
The stator unit fixing structure 100 of the present invention is made of a non-magnetic material. The second annular mounting plate 120 and the housing 130 are preferably made of aluminum alloy, and the first annular mounting plate 110 is preferably made of plastic.
For convenience in processing and installation, the first positioning hole, the second positioning hole and the third positioning hole are preferably through holes, and the fourth positioning hole is preferably a counter bore.
The embodiment of the present invention further provides a stator assembly 300, as shown in fig. 2 to 3, the stator assembly 300 includes a plurality of U-shaped stator units 200 and the aforementioned stator unit fixing structure 100, wherein:
the outside magnetic pole 242 of the stator unit 200 is inserted into the first positioning hole 111, and the inside magnetic pole 241 of the stator unit 200 is inserted into the second positioning hole 112; the stator unit 200 yoke portion 250 is inserted into the third positioning hole 121 or the fourth positioning hole 131.
The utility model discloses use the magnetic pole one end of the fixed stator unit of first annular mounting panel installation, use the yoke portion one end of the fixed stator unit of second annular mounting panel or casing installation to fix a position the mode through the locating hole, the equipment finishes obtaining stator module. The utility model provides a stator unit fixed knot constructs provides fixed knot for stator module to fixed mode is simple, and is fixed firm, and positioning accuracy is high.
In order to further increase the fixing firmness of the stator unit, glue is filled between the first annular mounting plate 110 and the second annular mounting plate 120 for fixing and sealing, and an inner circle 310 of the stator assembly 300 is reserved; alternatively, the first annular mounting plate 110 and the casing 130 are sealed by potting, leaving an inner circle 310 of the stator assembly 300. The inner circle of the stator assembly can be provided with devices such as a brake, and the brake is arranged in the inner circle of the stator assembly, so that the axial length of the motor can be reduced.
The embodiment of the utility model provides an axial magnetic field motor is still provided, including a rotor subassembly and two aforementioned stator module, two stator module set up the both sides at the rotor subassembly respectively.
Preferably, the yoke of the stator unit of one of the stator assemblies is fixedly mounted through the second annular mounting plate, and the yoke of the stator unit of the other stator assembly is fixedly mounted through the casing.
The utility model discloses an axial magnetic field motor includes aforementioned stator module, and it also has the beneficial effect of aforementioned stator module naturally, and here is no longer repeated.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A stator unit fixing structure, characterized in that the stator unit is U-shaped, wherein:
the stator unit fixing structure comprises a first annular mounting plate, a circle of first positioning holes for mounting the magnetic poles at the outer side of the stator unit are formed in the first annular mounting plate, and a circle of second positioning holes for mounting the magnetic poles at the inner side of the stator unit are formed in the first annular mounting plate;
the stator unit fixing structure further comprises a second annular mounting plate or a casing; a circle of third positioning holes for mounting the yoke parts of the stator units are formed in the second annular mounting plate; or a circle of fourth positioning holes for mounting the yoke part of the stator unit are formed in the end face of the machine shell.
2. A stator unit fixing structure according to claim 1, wherein a positioning pin hole is provided on the first annular mounting plate.
3. The stator unit fixing structure according to claim 2, wherein the second annular mounting plate and the end face of the housing are provided with an air outlet and a glue filling port.
4. The stator unit fixing structure according to claim 3, wherein the third positioning hole communicates with an inner circular space of the second annular mounting plate, and a stopper structure is provided inside the third positioning hole.
5. A stator unit fixing structure according to any one of claims 1-4, wherein the material of the stator unit fixing structure is a non-magnetic material.
6. The stator unit fixing structure according to claim 5, wherein the second annular mounting plate and the housing are made of aluminum alloy, and the first annular mounting plate is made of plastic.
7. The stator unit fixing structure according to claim 5, wherein the first positioning hole, the second positioning hole, and the third positioning hole are through holes, and the fourth positioning hole is a counter bore.
8. A stator assembly, characterized in that the stator assembly comprises a plurality of U-shaped stator units and the stator unit fixing structure of any one of claims 1 to 7, wherein:
the outer magnetic pole of the stator unit is inserted into the first positioning hole, and the inner magnetic pole of the stator unit is inserted into the second positioning hole; the stator unit yoke is inserted into the third positioning hole or the fourth positioning hole.
9. The stator assembly of claim 8, wherein the first annular mounting plate and the second annular mounting plate are sealed by potting adhesive, leaving an inner circle of the stator assembly; or, glue is filled between the first annular mounting plate and the casing for fixing and sealing, and an inner circle of the stator assembly is reserved.
10. An axial field machine comprising a rotor assembly and two stator assemblies according to claim 8 or 9, the two stator assemblies being disposed on opposite sides of the rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922037165.7U CN210577979U (en) | 2019-11-22 | 2019-11-22 | Stator unit fixing structure, stator assembly and axial magnetic field motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922037165.7U CN210577979U (en) | 2019-11-22 | 2019-11-22 | Stator unit fixing structure, stator assembly and axial magnetic field motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210577979U true CN210577979U (en) | 2020-05-19 |
Family
ID=70662450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922037165.7U Active CN210577979U (en) | 2019-11-22 | 2019-11-22 | Stator unit fixing structure, stator assembly and axial magnetic field motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210577979U (en) |
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2019
- 2019-11-22 CN CN201922037165.7U patent/CN210577979U/en active Active
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