CN2582265Y - Structure-improved stepping motor - Google Patents

Structure-improved stepping motor Download PDF

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Publication number
CN2582265Y
CN2582265Y CN 02286567 CN02286567U CN2582265Y CN 2582265 Y CN2582265 Y CN 2582265Y CN 02286567 CN02286567 CN 02286567 CN 02286567 U CN02286567 U CN 02286567U CN 2582265 Y CN2582265 Y CN 2582265Y
Authority
CN
China
Prior art keywords
stator
rotor
shell
bearing
perforation
Prior art date
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.)
Expired - Fee Related
Application number
CN 02286567
Other languages
Chinese (zh)
Inventor
张文彦
廖文庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUANBEN ELECTRONICS CO Ltd SUZHOU
Original Assignee
YUANBEN ELECTRONICS CO Ltd SUZHOU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YUANBEN ELECTRONICS CO Ltd SUZHOU filed Critical YUANBEN ELECTRONICS CO Ltd SUZHOU
Priority to CN 02286567 priority Critical patent/CN2582265Y/en
Application granted granted Critical
Publication of CN2582265Y publication Critical patent/CN2582265Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a step motor with an improved structure. The utility model is characterized in that the utility model is provided with a casing, one end of the casing is provided with a bearing and a plurality of through holes, and a stator is arranged in the casing; one end of the stator corresponding to the bearing is provided with a center hole, a bonding pole is arranged on the end of the stator corresponding to each of the through holes, and the bonding poles are penetrated through the through holes; the bonding poles are fused in the through holes, so the stator is fixed in the casing; a rotor which is provided with a mandrel is axially arranged in the center hole of the stator, one end of the mandrel is used as an output end, and the rotor is axially arranged in the bearing of the casing via the output end of the mandrel.

Description

Improve the stepper motor of structure
Technical field
The utility model relates to a kind of stepper motor.
Background technology
Existing stepper motor as shown in Figure 1 and Figure 2, this motor has a shell 5, these shell 5 one end faces have a clutch shaft bearing 51, and the affixed stator 52 of this end face, and be equiped with a stator 6 in this shell 5, these stator 6 centers have a centre bore 61, establish a rotor 7 for axle, this rotor 7 has an axle 71, and this shell 5 other end build-ins one enclosing cover 53, this enclosing cover 53 has one second bearing 54, and axle 71 two ends of this rotor 7 are hubbed at respectively in this clutch shaft bearing 51 and second bearing 54.Locate the central vertical degree of this rotor 7 by this first and second bearing 51,54, make rotor 7 can be positioned at the center of the centre bore 61 of this stator 6, touch stator 6, make the running of rotor 7 smooth and easy to avoid rotor 7.
Because the central vertical degree of this rotor 7 system is located by this first and second bearing 51,54, when therefore the center of this first and second bearing 51,54 is asymmetric, the central vertical degree of this rotor 7 promptly can be offset, and the center of the centre bore 61 of this stator 6 also can influence the central vertical degree of this rotor 7.
The central vertical degree that therefore can influence this rotor 7 has three parts, i.e. this clutch shaft bearing 51, the correlation position that second bearing 54 and stator are 6, yet, this is first years old, two bearings 51,54 is to lay respectively at this shell 5 and this enclosing cover 53, and this enclosing cover 53 is to utilize to compress this shell 5 to support the fixed form of living enclosing cover 53 admittedly, but when compressing this shell 5 because of there being external force can cause the center skew of the clutch shaft bearing 51 and second bearing 54, and the central vertical degree of this rotor 7 is offset, cause this rotor 7 to contact with the centre bore 61 of stator 6, differed in the gap of 61 of rotor 7 and stator 6 centre bores, and make rotor 7 produce the shearing effects, and then vibrate when causing motor running, problems such as stuck or noise.
Moreover, because this stator 6 is that build-in is in this shell 5, if the internal diameter of this shell 5 has deviation, just can influence the center of the centre bore 61 of this stator 6, make the centre bit of the centre bore 61 of this stator 6 be equipped with deviation, it can cause rotor 7 to contact with the centre bore 61 of stator 6 equally, produces the situation that differs in both gaps, and then problems such as cause motor running time vibration, stuck or noise.
Summary of the invention
Main purpose of the present utility model is: a kind of stepper motor that improves structure is provided, the rotor of this structure is located its center by a bearing, can avoid the skew of centre of rotor perpendicularity, make the gap between rotor and stator even, reduce the shearing effect, and make the rotor running smooth and easy, can effectively solve the stuck problem of rotor, and then vibration and noise when reducing motor running, and can further dwindle and control gap between rotor and stator, with the torsion of raising motor.
A purpose more of the present utility model is: a kind of stepper motor that improves structure is provided, the stator of this structure is fixed in this shell with thermal welding or hyperacoustic mode, therefore can prevent the loosening location that increases stator that reaches of stator, avoiding, and make stator and centre of rotor position generation deviation because of stator skew.
Another purpose of the present utility model is: a kind of improvement structure of stepper motor is provided, and this structure is only utilized bearing location rotor, and reduces the member of enclosing cover, but the cost of saving member not only, the cost in the time of more can saving assembling.
The technical solution of the utility model is: a kind of stepper motor that improves structure, has a shell, this shell one end is provided with a bearing and number perforation, and be provided with a stator in this shell, one end of this stator is to having a centre bore by bearing, this end correspondence of this stator respectively this perforation has a column respectively, for this perforation that stretches through, and column is fused in this perforation, this stator is fixed in this shell, and the centre bore axis of this stator is provided with a rotor, this rotor has an axle, this axle one end is an output, and this rotor system is located in the bearing of this shell with the output of this axle.
The utility model has the advantages that:
1. because its center perpendicularity is located with a bearing by rotor system, therefore not having two bearings locatees and produces poor problem, and can increase central vertical degree after the rotor assembling, make the gap between rotor and stator center hole even, to reduce the shearing effect, and make rotor running smooth and easy, can effectively solve the stuck problem of rotor, and then vibration and noise when reducing motor running.And can further dwindle and control gap between rotor and stator, to improve the torsion of motor.
2. stator system is fixed in this shell in the mode of thermal welding or ultrasonic fusing, therefore can prevent the loosening location that increases stator that reaches of stator, it need only proofread and correct the center of this stator center hole and this bearing, can avoid because of the stator skew, and make stator and centre of rotor position produce deviation.
3. owing to only utilize bearing location rotor, and reduced the member of shell, but the cost of saving member not only, the cost in the time of more can saving assembling.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples:
Fig. 1 is the three-dimensional exploded view of existing stepper motor;
Fig. 2 is the assembled sectional view of existing stepper motor;
Wherein: 5 shells; 51 clutch shaft bearings; 52 stators; 53 enclosing covers; 54 second bearings; 6 stators; 61 centre bores; 7 rotors; 71 axles.
Fig. 3 is a stereo appearance figure of the present utility model;
Fig. 4 is a three-dimensional exploded view of the present utility model;
Fig. 5 is the utility model shell opposite side schematic diagram;
Fig. 6 is an assembled sectional view of the present utility model.
Wherein: 1 shell; 11 end faces; 12 openings; 13 bearings; 14 projections; 15 perforation; 2 stators; 21 faying faces; 22 containing holes; 23 columns; 24 centre bores; 241 utmost point teeth; 3 rotors; 31 axles; 311 outputs; 32 shell fragments; 4 stators.
Embodiment
Embodiment: as Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, a kind of stepper motor that improves structure, this motor has a shell 1, these shell 1 one ends have an end face 11, and its other end has an opening 12, for a ccontaining stator 2, and end face 11 central authorities of this shell 1 have a bearing that extends internally 13, protruded out several projections 14 on the end face 11 of this shell 1 in addition, in this end face 11, bored a hole 15 and be provided with one between these end face 11 adjacent projections 14 for rivet clasp one stator 4.
One end face of this stator 2 is a faying face 21, its other end inner face central authorities have a containing hole 22, and this stator 2 is to embed in this shell 1 with this faying face 21, and the perforation 15 of these faying face 21 relative these shell 1 end faces 11 is provided with several columns 23, for this perforation 15 that stretches through, and this is extended through the column 23 of this perforation 15 with the mode hot melt of thermal welding or ultrasonic fusing, this stator 2 is fixed in this shell 1, and these stator 2 centers have a centre bore 24, establish a rotor 3 for axle, the perisporium of this centre bore 24 is provided with most staggered utmost point teeth 241.
This rotor 3 has an axle 31, these axle 31 1 ends are an output 311, this rotor 3 is that the output 311 with this axle 31 is located in the bearing 13 of this shell 1, and being embedded a shell fragment 32, the other end of these rotor 3 axles 31 is placed in the containing hole 22 of this stator 2, with this end of avoiding this axle 3 containing hole 22 that rubs.
Because rotor 3 is to locate its center perpendicularity with a bearing 13, therefore not having two bearings locatees and produces poor problem, and can increase central vertical degree after rotor 3 assembling, make the gap of 24 of rotor 3 and stator 2 centre bores even, to reduce the shearing effect, and make rotor 3 running smooth and easy, can effectively solve rotor 3 stuck problems, and then vibration and noise when reducing motor running.And can further dwindle and control the gap of 2 of rotor 3 and stators, to improve the torsion of motor.
Moreover, this stator 2 is that the mode with thermal welding or ultrasonic fusing is fixed in this shell 1, therefore can prevent the stator 2 loosening location that increase stator 2 that reach, it need only proofread and correct the center of these stator 2 centre bores 24 and this bearing 13, can avoid because of stator 2 skews, and make the stator 2 and the center of rotor 3 produce deviation.
Remove this, owing to only utilize a bearing 13 location rotors 3, and reduced the member of shell, but the cost of saving member not only, the cost in the time of more can saving assembling.

Claims (5)

1. stepper motor that improves structure, has a shell (1), it is characterized in that: this shell (1) one end is provided with a bearing (13) and number perforation (15), and be provided with a stator (2) in this shell (1), one end of this stator (2) is to having a centre bore (24) by bearing (13), and this end correspondence of this stator (2) respectively this perforation (15) have a column (23) respectively, for this perforation (15) that stretches through, and column (23) is fused in this perforation (15), this stator (2) is fixed in this shell (1), and centre bore (24) axis of this stator (2) is provided with a rotor (3), this rotor (3) has an axle (31), these axle (31) one ends are output (311), and this rotor (3) is that the output (311) with this axle (31) is located in the bearing (13) of this shell (1).
2. the stepper motor of improvement structure according to claim 1 is characterized in that: be respectively equipped with a projection (14) between the adjacent perforated (15) of this shell (1), for rivet clasp one stator (4).
3. the stepper motor of improvement structure according to claim 1, it is characterized in that: this stator (2) end inner face central authorities of this column (23) relatively has a containing hole (22), and this rotor axle (31) end of this output (311) relatively is embedded a shell fragment (32) and is placed in this containing hole (22).
4. the stepper motor of improvement structure according to claim 1 is characterized in that: the column (23) of this stator (2) is that mode blow with thermal welding is in the perforation (15) of this shell (1).
5. the stepper motor of improvement structure according to claim 1 is characterized in that: the column (23) of this stator (2) is that mode blow with ultrasonic fusing is in the perforation (15) of this shell (1).
CN 02286567 2002-12-03 2002-12-03 Structure-improved stepping motor Expired - Fee Related CN2582265Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02286567 CN2582265Y (en) 2002-12-03 2002-12-03 Structure-improved stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02286567 CN2582265Y (en) 2002-12-03 2002-12-03 Structure-improved stepping motor

Publications (1)

Publication Number Publication Date
CN2582265Y true CN2582265Y (en) 2003-10-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02286567 Expired - Fee Related CN2582265Y (en) 2002-12-03 2002-12-03 Structure-improved stepping motor

Country Status (1)

Country Link
CN (1) CN2582265Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7670068B2 (en) 2007-03-29 2010-03-02 Seiko Precision Inc. Actuator, shutter driving device for camera and method of manufacturing actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7670068B2 (en) 2007-03-29 2010-03-02 Seiko Precision Inc. Actuator, shutter driving device for camera and method of manufacturing actuator

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee