CN205212671U - A servo motor and sewing machine for sewing machine - Google Patents
A servo motor and sewing machine for sewing machine Download PDFInfo
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- CN205212671U CN205212671U CN201520891877.4U CN201520891877U CN205212671U CN 205212671 U CN205212671 U CN 205212671U CN 201520891877 U CN201520891877 U CN 201520891877U CN 205212671 U CN205212671 U CN 205212671U
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- sewing machine
- servomotor
- stator
- servo motor
- permanent magnet
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Abstract
The utility model provides a servo motor and sewing machine for sewing machine, servo motor include stator module and rotor subassembly, stator core internal surface among the stator module is equipped with axially extended recess, permanent magnet in the rotor subassembly is embedded in rotor core, rotor core wears to establish in the stator core. The utility model discloses a set up the recess at the stator core internal surface, increase servo motor self tooth's socket torque primitive period number, increase the effective air gap simultaneously to reduce self tooth's socket power of servo motor, reduced servo motor's torque ripple, carried high rotation torque control accuracy.
Description
Technical field
The utility model relates to sewing machine technique field, particularly relates to a kind of servomotor for sewing machine and sewing machine.
Background technology
Current sewing machine industry requires more and more higher to motor speed, at present a large amount of electrical motor of sewing machine structure used, and the Slot force of motor is comparatively large, and control precision is lower, can produce to exert oneself little when motor High Rotation Speed, and motor torque ripple is comparatively large, the problems such as noise is larger.And rotor in existing electrical motor of sewing machine adopts permanent magnet Surface Mount, the rotor high-speed that it easily causes rotates lower permanent magnet and easily to come off problem.
Chinese patent ZL201520065739.0 discloses a kind of servo motor for sewing machine, it rotor comprising a housing, be fixed on the stator in housing and be plugged in this stator, this housing is fixed on one and is positioned on the mounting panel in housing front, this mounting panel, for this servomotor is fixed on sewing machine body, pads between described housing and mounting panel and is provided with an elastic rubber fitting.The utility model only describes servomotor mounting means, does not specifically describe servomotor concrete structure.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of servomotor for sewing machine and sewing machine, for solving, Serve Motor Control precision in prior art in sewing machine is low, motor ultrahigh speed turn up less than etc. problem.
For achieving the above object and other relevant objects, the utility model provides a kind of servomotor for sewing machine, servomotor comprises stator module and rotor assembly, stator core inner surface in described stator module is provided with axially extended groove, permanent magnet in described rotor assembly is embedded in rotor core, and described rotor core is located in described stator core.
Preferably, described stator core is superposed by multiple stator punching and fixedly forms, and each stator punching distributes by multiple stator tooth hoop and the outer end of all stator tooths is fixedly connected with formation by a ring, and described groove is positioned on the inner face of described stator tooth.
Preferably, the outer peripheral face of described rotor core is formed by multistage arcwall face is connected.
Preferably, on described rotor core, corresponding each arcwall face is provided with an axially extended elongated slot, and described permanent magnet is plugged in described elongated slot, and the installation direction of polarity of the adjacent described permanent magnet plugged is contrary.
The utility model also provides a kind of sewing machine, and sewing machine is provided with servomotor, and described servomotor adopts as above for the servomotor structure of sewing machine.
As mentioned above, servomotor for sewing machine of the present utility model and sewing machine, there is following beneficial effect: it is by arranging groove at stator core inner surface, increase servomotor self cogging torque primitive period number, increase effective air gap simultaneously, thus reduce self Slot force of servomotor, reduce the torque pulsation of servomotor, improve direct torque precision; Adopt the rotor core of embedded permanent magnet, it avoids permanent magnet depart from and play a protective role to permanent magnet, effectively can also reduce magnetic loss, is suitable for servomotor weak magnetics detect simultaneously.
Accompanying drawing explanation
Fig. 1 is shown as the servomotor schematic diagram for sewing machine of the present utility model.
Fig. 2 is shown as stator core schematic diagram of the present utility model.
Fig. 3 is shown as rotor assembly schematic diagram of the present utility model.
Element numbers explanation
1 stator core
11 stator tooths
12 rings
13 grooves
2 rotor cores
21 arcwall faces
22 elongated slots
3 permanent magnets
Embodiment
By particular specific embodiment, execution mode of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 3.Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, the utility model provides a kind of servomotor for sewing machine, servomotor comprises stator module and rotor assembly, stator core 1 inner surface in described stator module is provided with axially extended groove 13, permanent magnet 3 in rotor assembly is embedded in rotor core 2, and rotor core 2 is located in stator core 1.The utility model adopts and arranges groove at stator core inner surface, reduces self Slot force of servomotor, reduces the torque pulsation of servomotor, improves direct torque precision; Adopt the rotor core of embedded permanent magnet, it avoids permanent magnet depart from and play a protective role to permanent magnet, effectively can also reduce magnetic loss, is suitable for servomotor weak magnetics detect simultaneously.
Particularly, said stator iron core 1 is superposed by multiple stator punching and fixedly forms, and welds all stator punchings by argon arc welding.As shown in Figure 2, each stator punching is by multiple stator tooth 11 hoop distribution and the outer end of all stator tooths 11 is fixedly connected with formation by a ring 12, and groove 13 is positioned on the inner face of stator tooth 11, and stator tooth forms stator winding for being wound around enamelled wire.
As shown in Figure 3, the outer peripheral face of above-mentioned rotor core 2 is connected by multistage arcwall face 21 and forms, namely the outer peripheral face of rotor core is irregular circle, on rotor core, corresponding each arcwall face 21 is provided with an axially extended elongated slot, permanent magnet 3 is plugged in elongated slot 22, and the contrary (see figure 1) of installation direction of polarity of the adjacent permanent magnet 3 plugged.Be connected by inner concave arc surface between adjacent arcwall face 21, irregular circular design decrease servomotor run up process produce vibration and noise, can realize servomotor high-speed smooth running; Embedded by permanent magnet, it can increase servomotor moment of torsion, and protection permanent magnet, not easily demagnetizes.Above-mentioned permanent magnet 3 is rectangle, and it is easy to processing and installs.
The utility model also provides a kind of sewing machine, and the servomotor in this sewing machine adopts as above for the servomotor of sewing machine.Said stator assembly and rotor assembly support the use, and while reduction servomotor teeth groove moment of torsion, are suitable for the weak magnetics detect of servomotor, improve the performance of servomotor.
In sum, the utility model is used for servomotor and the sewing machine of sewing machine, and it adopts and arranges groove at stator core inner surface, reduces self Slot force of servomotor, reduces the torque pulsation of servomotor, improves direct torque precision; Adopt the rotor core of embedded permanent magnet, it avoids permanent magnet depart from and play a protective role to permanent magnet, effectively can also reduce magnetic loss, is suitable for servomotor weak magnetics detect simultaneously.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (5)
1. the servomotor for sewing machine, servomotor comprises stator module and rotor assembly, it is characterized in that, stator core (1) inner surface in described stator module is provided with axially extended groove (13), permanent magnet (3) in described rotor assembly is embedded in rotor core (2), and described rotor core (2) is located in described stator core (1).
2. the servomotor for sewing machine according to claim 1, it is characterized in that: described stator core (1) is superposed by multiple stator punching and fixedly forms, and each stator punching is by the distribution of multiple stator tooth (11) hoop and the outer end of all stator tooths (11) is fixedly connected with formation by a ring (12), and described groove (13) is positioned on the inner face of described stator tooth (11).
3. the servomotor for sewing machine according to claim 1, is characterized in that: the outer peripheral face of described rotor core (2) is connected by multistage arcwall face (21) and forms.
4. the servomotor for sewing machine according to claim 3, it is characterized in that: the upper corresponding each arcwall face (21) of described rotor core (2) is provided with an axially extended elongated slot (22), described permanent magnet (3) is plugged in described elongated slot (22), and the installation direction of polarity of the adjacent described permanent magnet (3) plugged is contrary.
5. a sewing machine, sewing machine is provided with servomotor, it is characterized in that: described servomotor adopts the servomotor structure for sewing machine as described in claim 1 to any one of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891877.4U CN205212671U (en) | 2015-11-10 | 2015-11-10 | A servo motor and sewing machine for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891877.4U CN205212671U (en) | 2015-11-10 | 2015-11-10 | A servo motor and sewing machine for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205212671U true CN205212671U (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520891877.4U Active CN205212671U (en) | 2015-11-10 | 2015-11-10 | A servo motor and sewing machine for sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN205212671U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262304A (en) * | 2015-11-10 | 2016-01-20 | 浙江众邦机电科技有限公司 | A servo motor used for a sewing machine and the sewing machine |
| CN105871268A (en) * | 2016-05-24 | 2016-08-17 | 衢州学院 | Servo motor drive and control system of sewing machine |
| TWI716322B (en) * | 2020-06-01 | 2021-01-11 | 國立成功大學 | Electric mechanical structure and stator core component thereof |
-
2015
- 2015-11-10 CN CN201520891877.4U patent/CN205212671U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262304A (en) * | 2015-11-10 | 2016-01-20 | 浙江众邦机电科技有限公司 | A servo motor used for a sewing machine and the sewing machine |
| CN105871268A (en) * | 2016-05-24 | 2016-08-17 | 衢州学院 | Servo motor drive and control system of sewing machine |
| TWI716322B (en) * | 2020-06-01 | 2021-01-11 | 國立成功大學 | Electric mechanical structure and stator core component thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |