CN101958584B - Stator structure of motor with exposed iron core - Google Patents
Stator structure of motor with exposed iron core Download PDFInfo
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- CN101958584B CN101958584B CN2010102960040A CN201010296004A CN101958584B CN 101958584 B CN101958584 B CN 101958584B CN 2010102960040 A CN2010102960040 A CN 2010102960040A CN 201010296004 A CN201010296004 A CN 201010296004A CN 101958584 B CN101958584 B CN 101958584B
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Abstract
The invention provides a stator structure of a motor with an exposed iron core. The stator structure comprises a stator front axle, a stator iron core and a stator rear axle which are connected in turn, wherein at least two installation hole assemblies are formed on the stator structure; each installation hole assembly consists of a coaxial installation hole assembly passing through the stator front axle, the stator iron core and the stator rear axle; the stator front axle, the stator iron core and the stator rear axle are connected and fixed in each installation hole assembly by screws; the periphery of each screw is sleeved with spring pins; the spring pins are arranged at the joint between the stator front axle and the stator iron core and between the stator iron core and the stator rear axle; and the excircle periphery surface of each spring pin is in close fit with and contacted with the inner wall of an installation hole of the stator front axle, the stator iron core or the stator rear axle. In the stator structure, reliable circumferential positioning among the stator front axle, the stator rear axle and the stator iron core is ensured by a connected positioning structure consisting of the spring pins; and a reliable sealing effect of the connection among the stator front axle, the stator rear axle and the stator iron core is ensured by a static sealing structure consisting of a ring-shaped groove with a barb and an O-shaped sealing ring.
Description
Technical field
The present invention relates to field of motor manufacturing, particularly a kind of iron core exposes the stator structure of motor.
Background technology
Improving constantly of Along with people's life, production automation level the reliable long-life even running as the motor of dynamical element is had higher requirement, and the height of temperature rise also becomes the key index that influences electrical machinery life length.Both at home and abroad manufacturer is manufacturing and designing motor, when particularly manufacturing and designing the control motor, in order to help motor radiating, guarantees low temperature rise, the stator structure that gradually adopts the iron core of inorganic shell to expose.Yet, there are higher axiality requirement, motor integral body that higher degree of protection requirement is also arranged after the general assembly between stator core and the rotor core, these stator structures that all expose to iron core have proposed the difficult problem of necessary solution.To these difficult problems; Both at home and abroad manufacturer has taked similar solution; But those schemes to manufacture process more numerous and diverse, generally be that the stator core that earlier the rule shaping is finished is used screw attachment through tool locating and stator propons, stator back axle, again its integral body is done the insulating varnish impregnation process; By the filling solidification of insulating varnish to the gap, junction; Making stator core and stator propons, stator back axle become the integral body of a seamless combination, is positioning reference with the stator core endoporus then, the installation seam of processing stator propons, stator back axle; Thereby both guaranteed the axiality of stator core and rotor core after the general assembly, and made complete machine after the motor general assembly reach the high-protection level requirement of IP65 again.Also there are a lot of weak points in these solutions; In the process of the installation seam of processing stator propons, stator back axle, if find part inside defectives such as pore, shrinkage cavity are arranged, when situation such as processing dimension is overproof perhaps occurring; Will stator propons, stator back axle be dismantled by force through knocking modes such as destruction; And connect installation new stator propons, stator back axle, and carry out operations such as insulating varnish impregnation process, cut more again, these operations were both time-consuming; Hard again, also probably motor overall performance, outward appearance are impacted.
At present; Part domestic manufacturers take the motor product of similar structures, stator propons, stator back axle and stator core dislocation usually occur, cause normally smooth operation of motor; Even the situation that can't turn round; This is that causes motor is collided in processes such as carrying, installation owing to do not have the reliable localization structure between stator propons, stator back axle and the stator core, perhaps because of the distortion that misplaces of self conducting oneself with dignity; Situation about in use burning out because of the inner chamber water inlet also usually appears; This is because the process of practical operation is perfect inadequately; Gap, junction between stator core and stator propons, the stator back axle is failed to be insulated fully lacquer and is filled up; Perhaps in subsequent handling, occur colliding and becoming flexible, cause liquid is infiltrated from the slit, and this also just fails to make motor really to reach the high-protection level requirement of IP65.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; Provide a kind of iron core to expose the stator structure of motor; Through between each critical piece of stator structure, the location coupling assembly being set, make accurate positioning between each critical piece also to be difficult for producing the dislocation distortion under external force.
The present invention realizes through following technical scheme: a kind of iron core exposes the stator structure of motor; Comprise the stator propons, stator core and the stator back axle that connect successively; Be respectively equipped with at least 2 group installing hole groups on the stator structure; Each is organized the installing hole group and is made up of the coaxial installing hole that runs through stator propons, stator core and stator back axle respectively; Each is organized in the installing hole group and through screw stator propons, stator core and stator back axle is connected and fixed; Said screw periphery is with spring pivot, and spring pivot is located at the junction of stator propons and stator core and the junction of stator core and stator back axle respectively, and the outer circumference surface of each spring pivot closely cooperates with the installing hole inwall of stator propons, stator core or stator back axle and contacts.
Said screw afterbody is a thread segment, after screw passes the installing hole group, through its thread segment and stator propons thread connection.
The material of said spring pivot is a steel alloy, guarantees the intensity of spring pivot, thereby makes in the stator structure connection between each critical piece more stable.
Contact-making surface with stator core on the said stator propons is provided with the annular groove of being with barb; Also be provided with the annular groove of band barb on the stator back axle with on the contact-making surface of stator core; Be respectively equipped with O-ring seals in each annular groove, the two sides of O-ring seals contact with the bottom surface of annular groove and the end face of stator core respectively.
The cross sectional shape of said annular groove is that the angle structure that trapezoidal, trapezoidal hypotenuse and base form is overhead structure, and the span of angle is 45～75 °, and the overhead structure on the annular groove is compressed the stable placing mechanism before the distortion as O-ring seals.
The diameter of section of said O-ring seals is greater than the degree of depth of annular groove, and through the compression O-ring seals, the strain of its generation can form reliable plane static seal structure during installation.
Said connection positioning component also comprises spring washer, and spring washer is located at the joint of screw and stator back axle lateral surface.
The convenient preceding installation seam that connects with the motor front end housing when lateral surface of said stator propons is provided with general assembly; The lateral surface of stator back axle is provided with the back installation seam that connects with back end cover for motor when making things convenient for general assembly; Each is installed seam and adds man-hour, is positioning reference with the endoporus of stator core, obtains through precision cutting processing; Guarantee the axiality of stator core and rotor core after the general assembly, thereby guaranteed the smooth operation of motor.
Said stator back axle top is provided with motor main power source bindiny mechanism; Comprise waterproof socket, earth connection and binding post; The winding lead wire and the waterproof socket soldering of stator core are connected to form the main frame wiring units, and two ends of earth connection are connected to form the ground protection wiring units with binding post and waterproof socket soldering respectively.
This iron core exposes the stator structure of motor; Its principle is: through the junction at each critical piece (being stator propons, stator core and stator back axle) at least two groups are set and connect positioning component (being screw and spring pivot); Each connects the cooperation that positioning component passes through screw and spring pivot respectively; Make that the circumferential accurate positioning between each critical piece of stator structure is reliable; In use, connect positioning component and can select its quantity according to actual needs, but preferably use and even the setting around the axial centre pairing of stator structure; In addition; Through the annular groove of band barb is set on the contact-making surface of stator propons, stator back axle and stator core; O-ring seals is set in annular groove; Make the junction between each critical piece of stator structure form reliable plane static seal structure, can prevent effectively that extraneous liquid or other impurity from infiltrating motor, improves the degree of protection of motor.
The present invention has following advantageous effect with respect to prior art:
The stator structure that this iron core exposes motor is the structure of relative opening mode, through the connection location structure that utilizes spring pivot to constitute, guarantees that stator propons, stator back axle and reliable between the winding stator core of having of exposing unshakable in one's determination circumferentially locate; The annular groove through utilizing the band barb and the static seal structure of O-ring seals formation guarantee that connecting between stator propons, stator back axle and the stator core has reliable sealing effect.
It is simple relatively that the stator structure that this iron core exposes motor is manufactured process; Can realize large quantities of a large amount of productions; And be easy to realize reliably and keep higher processing precision, installation accuracy; This iron core had both obtained axiality higher between stator core and the rotor core after exposing the stator structure general assembly of motor, can make the motor general assembly again after complete machine reach the high-protection level requirement of IP65, thereby guaranteed the reliable smooth operation of motor.
Description of drawings
Fig. 1 is the structural representation that this iron core exposes the stator structure of motor.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the I partial enlarged drawing of Fig. 2.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but execution mode of the present invention is not limited thereto.
Embodiment
A kind of iron core of present embodiment exposes the stator structure of motor; Its structure such as Fig. 1 or shown in Figure 2; Comprise the stator propons 1, stator core 2 and the stator back axle 3 that connect successively; Be respectively equipped with at least 2 group installing hole groups on the stator structure; Each is organized the installing hole group and is made up of the installing hole of the coaxial setting that runs through stator propons 1, stator core 2 and stator back axle 3 respectively, and each is organized in the installing hole group and through screw 5 stator propons 1, stator core 2 and stator back axle 3 is connected and fixed, and screw 5 peripheries are with spring pivot 4; Spring pivot 4 is located at stator propons 1 and the junction of stator core 2 and the junction of stator core 2 and stator back axle 3 respectively, and the outer circumference surface of each spring pivot 4 closely cooperates with the installing hole inwall of stator propons 1, stator core 2 or stator back axle 3 and contacts.
Screw 5 afterbodys are thread segment, after screw 5 passes the installing hole group, through its thread segment and stator propons 1 thread connection.
But the material steel alloy of spring pivot 4 guarantees the intensity of spring pivot, thereby makes in the stator structure connection between each critical piece more stable.
As shown in Figure 3; Contact-making surface with stator core 2 on the stator propons 1 is provided with the annular groove 6 of being with barb; Also be provided with the annular groove 6 of band barb on the stator back axle 3 with on the contact-making surface of stator core 2; Be respectively equipped with O-ring seals 7 in each annular groove 6, the two sides of O-ring seals 7 contact with the bottom surface of annular groove 6 and the end face of stator core 2 respectively.
The cross sectional shape of annular groove 6 is that the angle structure that trapezoidal, trapezoidal hypotenuse and base form is overhead structure, and the span of angle is 45～75 °, and the overhead structure on the annular groove 6 is compressed the stable placing mechanism before the distortion as O-ring seals 7.
The diameter of section of O-ring seals 7 is greater than the degree of depth of annular groove 6, and through compression O-ring seals 7, the strain of its generation can form reliable plane static seal structure during installation.
As shown in Figure 1, connect positioning component and also comprise spring washer 8, spring washer 8 is located at the joint of screw 5 and stator back axle 3 lateral surfaces.
The convenient preceding installation seam 13 that connects with the motor front end housing when lateral surface of stator propons 1 is provided with general assembly; The lateral surface of stator back axle 3 is provided with the back installation seam 14 that connects with back end cover for motor when making things convenient for general assembly; Each is installed seam and adds man-hour, is positioning reference with the endoporus of stator core 2, obtains through precision cutting processing; Guarantee the axiality of stator core 2 and rotor core after the general assembly, thereby guaranteed the smooth operation of motor.
Stator back axle 3 tops are provided with motor main power source bindiny mechanism; Comprise waterproof socket 9, earth connection 10 and binding post 11; The winding lead wire 12 and waterproof socket 9 solderings of stator core 2 are connected to form the main frame wiring units, and two ends of earth connection 10 are connected to form the ground protection wiring units with binding post 11 and waterproof socket 9 solderings respectively.
This iron core exposes the stator structure of motor; Its principle is: through the junction at each critical piece (being stator propons 1, stator core 2 and stator back axle 3) at least two groups are set and connect positioning component (being screw 5 and spring pivot 4); Each connects the cooperation that positioning component passes through screw 5 and spring pivot 4 respectively; Make that the circumferential accurate positioning between each critical piece of stator structure is reliable; In use, connect positioning component and can select its quantity according to actual needs, but preferably use and even the setting around the axial centre pairing of stator structure; In addition; Through the annular groove 6 of band barb is set on the contact-making surface of stator propons 1, stator back axle 3 and stator core 2; O-ring seals 7 is set in annular groove 6; Make the junction between each critical piece of stator structure form reliable plane static seal structure, can prevent effectively that extraneous liquid or other impurity from infiltrating motor, improves the degree of protection of motor.
As stated, can realize preferably that just the present invention, the foregoing description are merely preferred embodiment of the present invention, be not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (6)
1. an iron core exposes the stator structure of motor; Comprise the stator propons, stator core and the stator back axle that connect successively; Be respectively equipped with at least 2 group installing hole groups on the stator structure; Each is organized the installing hole group and is made up of the coaxial installing hole that runs through stator propons, stator core and stator back axle respectively; Each is organized in the installing hole group and through screw stator propons, stator core and stator back axle is connected and fixed, and it is characterized in that said screw periphery is with spring pivot; Spring pivot is located at the junction of stator propons and stator core and the junction of stator core and stator back axle respectively, and the outer circumference surface of each spring pivot closely cooperates with the installing hole inwall of stator propons, stator core or stator back axle and contacts;
Contact-making surface with stator core on the said stator propons is provided with the annular groove of being with barb; Also be provided with the annular groove of band barb on the stator back axle with on the contact-making surface of stator core; Be respectively equipped with O-ring seals in each annular groove, the two sides of O-ring seals contact with the bottom surface of annular groove and the end face of stator core respectively;
The cross sectional shape of said annular groove is that the angle structure that trapezoidal, trapezoidal hypotenuse and base form is overhead structure, and the span of angle is 45 °～75 °.
2. expose the stator structure of motor according to the said a kind of iron core of claim 1, it is characterized in that said screw afterbody is a thread segment, after screw passes the installing hole group, through its thread segment and stator propons thread connection.
3. expose the stator structure of motor according to the said a kind of iron core of claim 1, it is characterized in that the material of said spring pivot is a steel alloy.
4. expose the stator structure of motor according to the said a kind of iron core of claim 1, it is characterized in that the diameter of section of said O-ring seals is greater than the degree of depth of annular groove.
5. expose the stator structure of motor according to the said a kind of iron core of claim 1; It is characterized in that; The convenient preceding installation seam that connects with the motor front end housing when lateral surface of said stator propons is provided with general assembly, the lateral surface of stator back axle is provided with the back installation seam that connects with back end cover for motor when making things convenient for general assembly.
6. expose the stator structure of motor according to the said a kind of iron core of claim 1; It is characterized in that; Said stator back axle top is provided with motor main power source bindiny mechanism; Comprise waterproof socket, earth connection and binding post, the winding lead wire and the waterproof socket soldering of stator core are connected to form the main frame wiring units, and two ends of earth connection are connected to form the ground protection wiring units with binding post and waterproof socket soldering respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102960040A CN101958584B (en) | 2010-09-28 | 2010-09-28 | Stator structure of motor with exposed iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102960040A CN101958584B (en) | 2010-09-28 | 2010-09-28 | Stator structure of motor with exposed iron core |
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| Publication Number | Publication Date |
|---|---|
| CN101958584A CN101958584A (en) | 2011-01-26 |
| CN101958584B true CN101958584B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102960040A Active CN101958584B (en) | 2010-09-28 | 2010-09-28 | Stator structure of motor with exposed iron core |
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| Country | Link |
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| CN (1) | CN101958584B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213053U (en) * | 1987-09-01 | 1988-07-06 | 苏州市吸尘器厂 | Electric motor of open-type dust collector |
| JP3622735B2 (en) * | 2002-04-01 | 2005-02-23 | 日産自動車株式会社 | Stator piece positioning structure for rotating electrical machines |
| CN201412471Y (en) * | 2009-06-19 | 2010-02-24 | 一拖(洛阳)开创装备科技有限公司 | Clearance automatic compensation mechanism for friction plates of wet-type multi-plate brake |
| CN201887569U (en) * | 2010-09-28 | 2011-06-29 | 广州数控设备有限公司 | Stator structure of motor with exposed iron core |
-
2010
- 2010-09-28 CN CN2010102960040A patent/CN101958584B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213053U (en) * | 1987-09-01 | 1988-07-06 | 苏州市吸尘器厂 | Electric motor of open-type dust collector |
| JP3622735B2 (en) * | 2002-04-01 | 2005-02-23 | 日産自動車株式会社 | Stator piece positioning structure for rotating electrical machines |
| CN201412471Y (en) * | 2009-06-19 | 2010-02-24 | 一拖(洛阳)开创装备科技有限公司 | Clearance automatic compensation mechanism for friction plates of wet-type multi-plate brake |
| CN201887569U (en) * | 2010-09-28 | 2011-06-29 | 广州数控设备有限公司 | Stator structure of motor with exposed iron core |
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| Publication number | Publication date |
|---|---|
| CN101958584A (en) | 2011-01-26 |
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