CN103746490A - Shellless permanent magnet motor - Google Patents
Shellless permanent magnet motor Download PDFInfo
- Publication number
- CN103746490A CN103746490A CN201310689839.6A CN201310689839A CN103746490A CN 103746490 A CN103746490 A CN 103746490A CN 201310689839 A CN201310689839 A CN 201310689839A CN 103746490 A CN103746490 A CN 103746490A
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- China
- Prior art keywords
- end cover
- stator
- side wall
- bottom end
- upper side
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- 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.)
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- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a shellless permanent magnet motor. The motor comprises an upper end cover and a lower end cover, and the upper end cover and the lower end cover are connected up and down in a closed mode to form an accommodating cavity in which a stator and a rotor are built. The peripheral edge of the upper end cover is provided with an upper side wall extending towards the lower end cover, the peripheral edge of the lower end cover is provided with a lower side wall extending towards the upper end cover, and the upper side wall and the lower side wall are connected in a matching mode. The stator is fixed on the inner side face of the lower side wall. The stator is rotatably mounted in the upper end cover and the lower end cover. The shell of a traditional permanent magnet motor is omitted, the upper end cover and the lower end cover are directly connected, the stator is fixed on the inner side face of the lower side wall, the structure is simpler, and the concentricity is ensured. According to further improvement of the invention, the two sides of the stator are tightly pressed by pressing surfaces of the upper and lower end covers, thus avoiding axial play of the stator, reducing vibration and noise and improving the reliability of the motor.
Description
Technical field
The present invention relates to magneto, relate in particular to a kind of without shell magneto.
Background technology
Prior art magneto generally includes upper end cover, bottom end cover and is connected to the shell composition between upper and lower end cap, and upper end cover, shell and bottom end cover are connected the cavity volume that stator and rotor are held in rear formation successively, and stator is fixed on the sidewall of shell.Because the magneto of prior art need to, between upper end cover and shell, carry out twice connection between shell and bottom end cover, often be difficult to guarantee accurate concentricity, can have influence on the rotation of rotor, reduced motor reliability of operation.And stator is directly fixed on two ends on the medial surface of shell and do not take compaction measure, in motor operation course, often can there is the axial endplay of stator, cause motor oscillating severity, and noise is larger, further reduced again motor reliability of operation.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide one and cancelled shell, guarantee the concentricity of motor upper and lower end cap, provide motor reliability of operation without shell magneto.
For achieving the above object, the present invention by the following technical solutions:
A kind of without shell magneto, comprise upper end cover and bottom end cover, it is characterized in that: described upper end cover and the upper and lower closure of described bottom end cover are connected to form the cavity volume of built-in stator and rotor, the neighboring of described upper end cover has the upper side wall extending towards described bottom end cover, the neighboring of described bottom end cover has the lower wall of extending towards described upper end cover, and described upper side wall and described lower wall are in mating connection; Described stator is fixed on the medial surface of described lower wall; Described rotor is installed in rotation in described upper end cover and described bottom end cover.
Preferably, the portion of getting out of a predicament or an embarrassing situation that there is to install described stator near the part of described upper side wall in described lower wall, described in the portion of getting out of a predicament or an embarrassing situation have fixing described stator inner concave, be resisted against the lower seal face of described stator on the end face of described bottom end cover and the end face being connected with upper side wall.
Further, the described portion of getting out of a predicament or an embarrassing situation has the end that extends beyond described stator towards described upper side wall, on described upper side wall, there is the portion of topping bar matching with described end, described in the portion of topping bar there is the outer concave surface that coordinates with described end, be resisted against described stator upper seal face on the end face of described upper end cover.
Wherein, described upper end cover and described bottom end cover are integrated aluminum hull structure.
Owing to adopting technique scheme, of the present inventionly without shell magneto, have the following advantages: (1) adopts upper end cover to be directly connected with bottom end cover, has cancelled shell, structure is simpler, guarantee the concentricity of upper and lower end cap, made rotor operation stable, improved motor reliability of operation; (2) by the two ends of lower seal face and upper seal face compression stator, avoided the axial endplay of stator, reduced motor oscillating and noise, further improve motor reliability of operation.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Refer to Fig. 1, a kind of without shell magneto, comprise bottom end cover 1, stator 2, rotor and upper end cover 3.Upper end cover 3 and bottom end cover 1 are integrated aluminum hull structure.Upper end cover 3 the closed inside afterwards that is connected forms cavity volume with bottom end cover Shang Xia 1, and stator 2 and rotor are built in described cavity volume.
The neighboring of upper end cover 3 has the upper side wall 31 extending towards bottom end cover 1, and the neighboring of bottom end cover 1 has the lower wall 11 of extending towards described upper end cover 3, and upper side wall 31 and lower wall 11 are in mating connection.Stator 2 is fixed on the medial surface of lower wall 11.Rotor is installed in rotation in upper end cover 3 and bottom end cover 1 by bearing, and the periphery of rotor is provided with magnet steel, and the output shaft being connected with rotor is rotationally through bottom end cover 1.
Wherein, the portion of getting out of a predicament or an embarrassing situation 110 that there is to install described stator near the part of upper side wall 31 in lower wall 11, the portion 110 of getting out of a predicament or an embarrassing situation has the inner concave 111 of fixed stator 2, is resisted against the lower seal face 112 of stator 2 on the end face of bottom end cover 1 and the end face being connected with upper side wall 31, and stator 2 is fixed on inner concave 111 by screw radially.The portion 110 of getting out of a predicament or an embarrassing situation has the end that extends beyond stator 2 towards upper side wall 31, on upper side wall 31, have the portion of topping bar 310 matching with the end of the portion of getting out of a predicament or an embarrassing situation 110, the portion 310 of topping bar has the outer concave surface 311 that coordinates with the end of the portion of getting out of a predicament or an embarrassing situation 110, is resisted against the upper seal face 312 of stator 2 on the end face of upper end cover 3.
Owing to having cancelled the shell of traditional magneto, by upper end cover 3, be directly connected with bottom end cover 1, guaranteed the two concentricity, make the rear operation of rotor installation more stable, promoted motor reliability of operation.Stator 2 is fixed in the inner concave 111 of bottom end cover 11, and compresses by upper seal face 312 and the lower seal face 112 of both sides, has avoided the axial endplay of stator 2, has reduced vibration and noise, has further improved the reliability of magneto.
Claims (4)
1. one kind without shell magneto, comprise upper end cover and bottom end cover, it is characterized in that: described upper end cover and the upper and lower closure of described bottom end cover are connected to form the cavity volume of built-in stator and rotor, the neighboring of described upper end cover has the upper side wall extending towards described bottom end cover, the neighboring of described bottom end cover has the lower wall of extending towards described upper end cover, and described upper side wall and described lower wall are in mating connection; Described stator is fixed on the medial surface of described lower wall; Described rotor is installed in rotation in described upper end cover and described bottom end cover.
2. one according to claim 1 is without shell magneto, it is characterized in that: the portion of getting out of a predicament or an embarrassing situation that there is to install described stator near the part of described upper side wall in described lower wall, described in the portion of getting out of a predicament or an embarrassing situation have fixing described stator inner concave, be resisted against the lower seal face of described stator on the end face of described bottom end cover and the end face being connected with upper side wall.
3. one according to claim 2 is without shell magneto, it is characterized in that: described in the portion of getting out of a predicament or an embarrassing situation there is the end that extends beyond described stator towards described upper side wall, on described upper side wall, there is the portion of topping bar matching with described end, described in the portion of topping bar there is the outer concave surface that coordinates with described end, be resisted against described stator upper seal face on the end face of described upper end cover.
According to the one described in claims 1 to 3 any one without shell magneto, it is characterized in that: described upper end cover and described bottom end cover are integrated aluminum hull structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689839.6A CN103746490A (en) | 2013-12-17 | 2013-12-17 | Shellless permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689839.6A CN103746490A (en) | 2013-12-17 | 2013-12-17 | Shellless permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103746490A true CN103746490A (en) | 2014-04-23 |
Family
ID=50503493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310689839.6A Pending CN103746490A (en) | 2013-12-17 | 2013-12-17 | Shellless permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746490A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075036A (en) * | 2011-01-26 | 2011-05-25 | 胡磊 | Speed measurement control device for motor |
| CN202178625U (en) * | 2011-08-04 | 2012-03-28 | 中山大洋电机制造有限公司 | Motor with plastic housing |
| CN202334243U (en) * | 2011-11-25 | 2012-07-11 | 常州市运控电子有限公司 | Large-torque hybrid stepping motor |
| CN202353378U (en) * | 2011-12-03 | 2012-07-25 | 中山大洋电机股份有限公司 | Novel mixing type direct current motor structure |
| CN203632418U (en) * | 2013-12-17 | 2014-06-04 | 苏州江南嘉捷机电技术研究院有限公司 | Casing-less permanent magnet motor |
-
2013
- 2013-12-17 CN CN201310689839.6A patent/CN103746490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075036A (en) * | 2011-01-26 | 2011-05-25 | 胡磊 | Speed measurement control device for motor |
| CN202178625U (en) * | 2011-08-04 | 2012-03-28 | 中山大洋电机制造有限公司 | Motor with plastic housing |
| CN202334243U (en) * | 2011-11-25 | 2012-07-11 | 常州市运控电子有限公司 | Large-torque hybrid stepping motor |
| CN202353378U (en) * | 2011-12-03 | 2012-07-25 | 中山大洋电机股份有限公司 | Novel mixing type direct current motor structure |
| CN203632418U (en) * | 2013-12-17 | 2014-06-04 | 苏州江南嘉捷机电技术研究院有限公司 | Casing-less permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140423 |