CN210577980U - Double-stator axial magnetic field motor shell and axial magnetic field motor - Google Patents
Double-stator axial magnetic field motor shell and axial magnetic field motor Download PDFInfo
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- CN210577980U CN210577980U CN201922038400.2U CN201922038400U CN210577980U CN 210577980 U CN210577980 U CN 210577980U CN 201922038400 U CN201922038400 U CN 201922038400U CN 210577980 U CN210577980 U CN 210577980U
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Abstract
The utility model discloses a two stator axial magnetic field motor casing and axial magnetic field motor belongs to the motor field. The shell comprises a front shell, a rear shell and a front end cover; the rear shell is of a structure that a rear end cover and part of the shell are integrally formed, and the front shell and the front end cover are of an integrally formed structure or a split structure; the inner circle of the front casing is provided with a first annular step and a second annular step for fixing two front stator annular mounting plates, the inner circle of the rear casing is provided with a third annular step for fixing a rear stator annular mounting plate, and a rear end face in the rear casing is provided with a rear end inserted positioning hole for a rear stator. The utility model discloses a two stators of single rotor double stator axial magnetic field motor of sectional type stator provide mounting structure, and the mounting means is simple and convenient, and installation positioning accuracy is high.
Description
Technical Field
The utility model relates to the field of electric machines, especially indicate a two stator axial magnetic field motor casing 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, high torque density and small rotor moment of inertia.
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).
The existing single-rotor double-stator axial magnetic field motor is basically of a structure of a front end cover, a middle shell and a rear end cover, wherein a motor stator and a rotor are placed in the middle shell, and motor bearings are placed in the front end cover and the rear end cover. For a single-rotor double-stator axial magnetic field motor with a sectional stator, the existing machine shell structure cannot adapt to installation of the sectional stator.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two stator axial magnetic field motor casings and axial magnetic field motor, the utility model discloses a two stators of the single-rotor two stator axial magnetic field motor of sectional type stator provide mounting structure, and the mounting means is simple and convenient, and installation positioning accuracy is high.
The utility model provides a technical scheme as follows:
a dual stator axial field electric machine casing, the casing comprising a front casing, a rear casing and a front end cap, wherein:
the rear shell is of a structure that a rear end cover and part of the shell are integrally formed, and the front shell and the front end cover are of an integrally formed structure or a split structure;
the inner circle of the front casing is provided with a first annular step and a second annular step for fixing two front stator annular mounting plates, the inner circle of the rear casing is provided with a third annular step for fixing a rear stator annular mounting plate, and a rear end face in the rear casing is provided with a rear end inserted positioning hole for a rear stator.
Furthermore, the first annular step and the third annular step are provided with positioning pin holes.
Furthermore, the front end face of the rear casing and the rear end face of the front casing are provided with first spigot structures which are matched with each other, and the front end face of the front casing and the rear end face of the front end cover are provided with second spigot structures which are matched with each other.
Further, the first spigot structure is a multi-section arc-shaped structure.
Furthermore, bolt holes are formed in the rear casing and the front casing, the rear casing is connected with the front casing through bolts, screw holes are formed in the front casing and the front end cover, and the front casing is connected with the front end cover through screws.
Further, arc-shaped notches are formed in the outer walls of the rear shell and the front shell at bolt holes.
Further, a bearing chamber is formed in the rear shell, and an installation space for installing a rotary transformer and/or an encoder is formed in the rear end of the rear shell.
Furthermore, wire outlets are formed in the front shell and the rear shell, sealing ring grooves are formed in the wire outlets, and wire outlet box mounting holes are formed in the periphery of the wire outlets.
Furthermore, the rear end face of the rear shell is provided with an air outlet and a glue filling opening.
An axial magnetic field motor comprises the double-stator axial magnetic field motor shell.
The utility model discloses following beneficial effect has:
the utility model discloses divide into preceding casing, back casing with the casing, still include the front end housing when necessary, install the preceding stator of two stators in the casing in the front, install the back stator in the casing of back. Wherein, two annular steps for fixing two front stator annular mounting plates are arranged in the front casing and used for fixedly mounting the front stator. And the rear shell is provided with a third annular step and a positioning hole for mounting the rear stator. The utility model discloses a two stators of single rotor double stator axial magnetic field motor of sectional type stator provide mounting structure to its mounting means is simple and convenient, and the installation accuracy is high. Additionally, the utility model discloses be the rear casing with rear end housing and partial casing integrated into one piece, the front casing also when necessary with front end housing integrated into one piece, reduced spare part, reduced assembly process, increased positioning accuracy.
Drawings
Fig. 1 is a schematic view of the overall structure of a double-stator axial magnetic field motor casing according to the present invention;
FIG. 2 is a schematic view showing one structural example of a rear stator;
FIG. 3 is a schematic view showing one structural example of a front stator;
FIGS. 4-5 are schematic views of a front housing;
FIGS. 6-7 are schematic views of the rear housing;
fig. 8 is a schematic diagram of an axial field motor.
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.
An embodiment of the utility model provides a two stator axial magnetic field motor casings, as shown in fig. 1, this casing 100 includes front casing 1, back casing 2 and front end housing 3.
The utility model discloses a "preceding", "back" position is based on the axial and motor load's distance and is decided, and one side of being close to the load is "front side", and the one side of keeping away from the load is "rear side", as shown in figure 1.
The housing of the present invention is used in a segmented stator single rotor dual stator axial field machine, one of which is shown typically in fig. 2-3. Fig. 2 is a rear stator 200 of a segmented stator single rotor double stator axial field machine, and fig. 3 is a front stator 300. Since the front and rear stators are segmented stators of the plurality of stator units 400, it is necessary to support the plurality of stator units 400.
Preferably, the stator unit is U-shaped, and the front ends of the plurality of stator units 400 of the front stator 300 are supported by a front stator annular mounting plate 500, which is provided with a circle of positioning windows, into which the front ends of the plurality of stator units 400 of the front stator 300 are inserted; the rear ends of the plurality of stator units 400 of the front stator 300 are supported by another front stator ring-shaped mounting plate 600, and two rings of positioning windows are opened on this front stator ring-shaped mounting plate 600, and the rear ends of the plurality of stator units 400 of the front stator 300 are inserted into the two rings of positioning windows.
The front ends of the plurality of stator units 400 of the rear stator 200 are supported by a rear stator ring mounting plate 700, two rings of positioning windows are opened on the rear stator ring mounting plate 700, the front ends of the plurality of stator units 400 of the rear stator 200 are inserted into the two rings of positioning windows, and the rear ends of the plurality of stator units 400 of the rear stator 200 are supported by the rear housing 2.
The utility model discloses a casing also is used for providing mounting structure for the stator of above-mentioned structure, but the utility model discloses a casing is not only applicable to the stator of above-mentioned structure, as long as the stator is the sectional type to the structural style who supports a plurality of stator units through the annular mounting panel is all the structure of adaptation.
Wherein, as shown in fig. 4-8:
the utility model discloses a back casing 2 is rear end cap and partial casing integrated into one piece's structure.
The existing axial magnetic field motor is basically composed of a middle shell, a front end cover and a rear end cover, wherein a motor stator and a motor rotor are placed in the middle shell, and motor bearings are placed in the front end cover and the rear end cover. The utility model discloses the rear end cap with current axial magnetic field motor casing closes as an organic wholely with some (preferably half) middle casing, makes a holistic part, promptly the utility model discloses a rear housing. The utility model discloses a back casing is used for placing other necessary parts such as back stator and bearing.
The front casing 1 and the front end cover 3 are of an integrally formed structure or a split structure.
The front housing is the "remaining" part of the rear housing, preferably half of the housing, and is used to mount the front stator, and may also be used to mount other necessary components such as brake 23. To reduce the axial distance, the brake is preferably mounted in the inner circle of the front stator.
When the stopper need not be installed in the current casing, front casing and front end housing can be integrated into one piece's structure, perhaps the inside space of current casing is more abundant, and when having sufficient space can be convenient installation stopper, the stopper is installed from the back to the front in the casing in the front, and front casing and front end housing can be integrated into one piece's structure.
However, when the space inside the front housing is small, especially when the brake is installed in the inner circle of the front stator, if the distance between the outer circle of the brake and the inner circle of the front stator is small, the brake cannot be installed in the front housing from the rear to the front due to the flange at the front end of the brake, and the brake can only be installed in the front housing from the front to the rear, so that the front housing and the front end cover need a time division structure.
The inner circle of the front casing 1 is provided with a first annular step 4 and a second annular step 5 for fixing two front stator annular mounting plates.
During installation, the front stator is arranged outside the shell to form a whole, and then the front stator is arranged in the front shell from back to front, so that the two front stator annular mounting plates are matched with the first annular step and the second annular step respectively.
Alternatively, one front stator annular mounting plate is first installed into the front casing from the rear to the front so that it engages with the first annular step, then the stator unit is installed on this front stator annular mounting plate, and finally the other front stator annular mounting plate is installed on the stator unit so that it engages with the second annular step.
A third annular step 6 for fixing a rear stator annular mounting plate is arranged on the inner circle of the rear casing 2, and a positioning hole 7 for inserting the rear end of the rear stator is arranged on the rear end face in the rear casing 2.
During installation, the stator unit of the rear stator is inserted into the positioning hole of the rear casing, and then the rear stator annular mounting plate is installed on the stator unit so as to be matched with the third annular step.
The utility model discloses divide into preceding casing, back casing with the casing, still include the front end housing when necessary, install the preceding stator of two stators in the casing in the front, install the back stator in the casing of back. Wherein, two annular steps for fixing two front stator annular mounting plates are arranged in the front casing and used for fixedly mounting the front stator. And the rear shell is provided with a third annular step and a positioning hole for mounting the rear stator. The utility model discloses a two stators of single rotor double stator axial magnetic field motor of sectional type stator provide mounting structure to its mounting means is simple and convenient, and the installation accuracy is high. Additionally, the utility model discloses be the rear casing with rear end housing and partial casing integrated into one piece, the front casing also when necessary with front end housing integrated into one piece, reduced spare part, reduced assembly process, increased positioning accuracy.
In order to fix the front stator and the rear stator in the circumferential direction, the first annular step 4 and the third annular step 6 are provided with positioning pin holes 8 into which positioning pins are inserted to restrict circumferential movement of the front stator and the rear stator.
The front end face of the rear casing 2 and the rear end face of the front casing 1 are provided with first spigot structures 9 which are matched with each other, and the front end face of the front casing 1 and the rear end face of the front end cover 3 are provided with second spigot structures 10 which are matched with each other.
The first seam allowance structure increases the assembly precision of the rear shell and the front shell, and the second seam allowance structure increases the assembly precision of the front shell and the front end cover.
In order to reduce the weight of the motor, the thickness of the casing can be reduced as much as possible on the premise of ensuring the strength, but if the thickness of the casing is too small, the space in the radial direction between the front end surface of the rear casing and the rear end surface of the front casing is limited. Therefore, the first seam allowance structure 9 is not a complete circular structure but a circular arc structure divided into a plurality of segments, that is, a partial seam allowance structure (a segmented seam allowance structure).
The utility model discloses in, seted up bolt hole 11 on back casing 2 and the preceding casing 1, back casing 2 and preceding casing 1 pass through bolt 12 to be connected, have seted up screw hole 13 on preceding casing 1 and the front end housing 3, and preceding casing 1 and front end housing 3 pass through screw 14 to be connected.
As an improvement of the utility model, arc-shaped notches 15 are arranged at the bolt holes 11 on the outer walls of the rear casing 2 and the front casing 1.
The arc breach provides installation operating space for the bolted connection of back casing and preceding casing on the one hand, and on the other hand can increase the natural cooling area of motor, can reduce the weight of motor simultaneously.
The utility model discloses bearing room 16 has been seted up in the inside of back casing 2 for the installation bearing, the bearing room is at the inside integrated into one piece of back machine.
In the prior art, a bearing chamber and a housing are generally in a split structure, for example, chinese patent document CN109301953A discloses a double-stator disc motor end cover connection structure and a double-stator disc motor. The casing comprises an end cover, a ring is sleeved on the inner side of the end cover to serve as an embedded bearing chamber, the position degree of the bearing after the bearing chamber is separated from the casing is not integrally processed, the precision is high, and the axial distance is not easy to control.
The utility model discloses a bearing room is at the inside integrated into one piece of back machine, has left out the assembly process of bearing room, and bearing room position is more accurate.
If equipment such as a resolver and/or an encoder needs to be installed, an installation space 17 for installing the resolver and/or the encoder is provided at the rear end of the rear cabinet 2.
The front shell 1 and the rear shell 2 are provided with outlet ports 18, the outlet ports are preferably arranged on the top walls of the front shell and the rear shell, the outlet port of the front shell is positioned at the rear end of the front shell, and the outlet port of the rear shell is positioned at the front end of the rear shell.
A sealing ring groove 19 is formed in the position of the wire outlet 18 and used for installing a sealing ring, and the sealing performance of the wire outlet can be better according to the IP grade requirement; an outlet box mounting hole 20 is provided around the outlet 18 for mounting an outlet box 24.
In order to further fix the front stator and the rear stator, the front stator and the rear stator need to be subjected to glue filling treatment, wherein the rear end face of the rear casing 2 is provided with an air outlet 21 and a glue filling opening 22. And (5) pouring the glue through the glue pouring port, and vacuumizing through the air outlet to remove air bubbles generated by glue pouring. The rear shell is provided with different air outlets according to the property of the pouring sealant, if the flowability of the sealant is poor, the number of the air outlets which can be opened is not less than that of the stator units, and if the flowability of the sealant is good, the number of the air outlets which can be opened in a vacuumizing mode can be reduced. The front stator is provided with a glue filling opening on the front stator annular mounting plate.
The embodiment of the utility model provides an axial magnetic field motor is still provided, including aforementioned two stator axial magnetic field motor casings, as shown in figure 8.
The utility model discloses an axial magnetic field motor includes aforementioned casing, and it also has the beneficial effect of aforementioned casing 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. The utility model provides a two stator axial field motor casings, its characterized in that, the casing includes preceding casing, back casing and front end housing, wherein:
the rear shell is of a structure that a rear end cover and part of the shell are integrally formed, and the front shell and the front end cover are of an integrally formed structure or a split structure;
the inner circle of the front casing is provided with a first annular step and a second annular step for fixing two front stator annular mounting plates, the inner circle of the rear casing is provided with a third annular step for fixing a rear stator annular mounting plate, and a rear end face in the rear casing is provided with a rear end inserted positioning hole for a rear stator.
2. The dual stator axial field motor case of claim 1, wherein the first and third annular steps have registration pin holes disposed thereon.
3. The machine shell of the double-stator axial magnetic field motor according to claim 1, wherein a first spigot structure matched with each other is arranged on the front end face of the rear machine shell and the rear end face of the front machine shell, and a second spigot structure matched with each other is arranged on the front end face of the front machine shell and the rear end face of the front end cover.
4. The dual stator axial field motor case of claim 3, wherein the first spigot structure is a multi-segment circular arc structure.
5. The casing of a double-stator axial magnetic field motor according to claim 3, wherein the rear casing and the front casing are provided with bolt holes, the rear casing and the front casing are connected through bolts, the front casing and the front end cover are provided with bolt holes, and the front casing and the front end cover are connected through bolts.
6. The machine shell of a double-stator axial magnetic field motor according to claim 5, wherein arc-shaped notches are formed in the outer walls of the rear machine shell and the front machine shell at bolt holes.
7. The machine shell of the double-stator axial magnetic field motor according to any one of claims 1 to 6, wherein a bearing chamber is formed inside the rear machine shell, and an installation space for installing a rotary transformer and/or an encoder is formed at the rear end of the rear machine shell.
8. The machine shell of claim 7, wherein the front and rear machine shells have outlets, the outlets having sealing grooves, and outlet box mounting holes are disposed around the outlets.
9. The machine shell of the double-stator axial magnetic field motor according to claim 7, wherein the rear end face of the rear machine shell is provided with an air outlet and a glue filling port.
10. An axial field machine comprising a double stator axial field machine housing according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922038400.2U CN210577980U (en) | 2019-11-22 | 2019-11-22 | Double-stator axial magnetic field motor shell and axial magnetic field motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922038400.2U CN210577980U (en) | 2019-11-22 | 2019-11-22 | Double-stator axial magnetic field motor shell and axial magnetic field motor |
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| Publication Number | Publication Date |
|---|---|
| CN210577980U true CN210577980U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922038400.2U Active CN210577980U (en) | 2019-11-22 | 2019-11-22 | Double-stator axial magnetic field motor shell and axial magnetic field motor |
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| CN (1) | CN210577980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114598073A (en) * | 2021-11-12 | 2022-06-07 | 杭州中豪电动科技有限公司 | Assembled generator and range extender |
-
2019
- 2019-11-22 CN CN201922038400.2U patent/CN210577980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114598073A (en) * | 2021-11-12 | 2022-06-07 | 杭州中豪电动科技有限公司 | Assembled generator and range extender |
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