CN111181286A - Stator core of electromagnetic brake - Google Patents
Stator core of electromagnetic brake Download PDFInfo
- Publication number
- CN111181286A CN111181286A CN202010015239.1A CN202010015239A CN111181286A CN 111181286 A CN111181286 A CN 111181286A CN 202010015239 A CN202010015239 A CN 202010015239A CN 111181286 A CN111181286 A CN 111181286A
- Authority
- CN
- China
- Prior art keywords
- stator core
- electromagnetic brake
- groove
- mounting groove
- brake
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a stator core of an electromagnetic brake, wherein a coil winding installation groove is formed in the stator core, and an insulating layer is formed on the bottom wall and the side wall of the installation groove in a coating mode. Through the arrangement of the insulating layer, the stator core through sealing process can be eliminated, the insulating sheet at the bottom of the mounting groove is eliminated, the production process is simplified, and the structure of the stator core is optimized; meanwhile, as through sealing is not needed, a resin through sealing groove can be eliminated, and the manufacturing cost of the stator core is reduced. Because the outer ring of the stator core is a magnetic circuit component of the electromagnetic brake, after the resin penetration groove is eliminated, the sectional area of the outer ring of the stator core is increased, the magnetic saturation degree of the outer ring of the stator core is favorably reduced, the hysteresis effect is reduced, the residual magnetism accumulation of the stator core caused by the long-term work of the brake is reduced, and the long-term reliability of the brake is improved.
Description
Technical Field
The invention relates to an electromagnetic brake stator core, in particular to an electromagnetic brake stator core of a servo motor.
Background
The electromagnetic brake is a commonly used braking component, and if the electromagnetic brake is a key component of a servo motor assembly, the electromagnetic brake can accurately control the action of the servo motor and brake. As shown in fig. 1-3, a prior art electromagnetic brake stator core 101 is illustrated, comprising: the structure comprises a cylindrical body 102, a mounting groove 103, a resin through sealing groove 104, a central hole 105, a first hole 106, a second hole 107 and a first groove 108. Wherein, the mounting groove 103 is bare-walled, the bottom is padded with the insulating layer, after packing into the coil winding, the reuse insulating material runs through and seals to solve coil winding fixed, insulating and heat dissipation problem, wherein there are 3 circular arc breachs (resin runs through the seal groove 104) on the mounting groove 103 outer lane, the main function is that the mobility of insulating resin runs through the seal material is poor, divide 3 positions to add and run through the seal material, can be more uniform.
The existing electromagnetic brake has the following problems: because the general overall dimension of stopper is little, and the installation tank bottom of laying coil pack is totally closed, causes to pass through to seal the technology degree of difficulty greatly, causes easily following harmfully:
1) the insulation is poor due to insufficient through sealing;
2) the coil winding is floated due to excessive through sealing, so that the size of the iron core component is poor, the connection and the attraction of electrification are influenced, and the product performance is seriously influenced.
The two conditions reduce the production yield of the brake.
Disclosure of Invention
In view of the above, the present invention provides a stator core of an electromagnetic brake, which can simplify the production process by coating an insulating layer in a mounting groove instead of an insulating sheet at the bottom of the mounting groove (circular groove). And optimizing the structure of the stator core.
Specifically, the method comprises the following steps: the utility model provides an electromagnetic brake stator core, stator core is formed with coil winding mounting groove, be formed with the insulating layer on the diapire and the lateral wall of mounting groove.
Preferably, the bottom wall and the side wall of the mounting groove form the insulating layer by coating.
Preferably, the insulating layer is formed by resin coating.
Preferably, the thickness of the insulating layer is 0.6-0.8 mm.
Preferably, the stator core includes a cylindrical body, and the mounting groove is formed on an end surface of the cylindrical body, and is an annular groove.
Preferably, the cylindrical body is further formed with a center hole concentrically disposed with the mounting groove,
preferably, the side surface of the cylindrical body further includes a first hole communicating with the mounting groove.
Preferably, the end face of the cylindrical body is further formed with a second bore and a first groove.
The present invention also provides an electromagnetic brake having the stator core according to the present invention.
The invention further provides a servomotor having the electromagnetic brake of the invention.
Has the advantages that:
the stator core can eliminate the stator through sealing process and an insulating sheet at the bottom of the mounting groove (circular groove) by coating the insulating layer in the coil winding mounting groove, thereby simplifying the production process and optimizing the structure of the stator core; the invention cancels 3 arc gaps (resin through sealing slots) in the circular slots, simplifies the structure of the stator core and can reduce the manufacturing cost of the stator core. Because the outer ring of the stator core is a magnetic circuit component of the electromagnetic brake, after the through sealing gap (resin through sealing groove) of the stator core is eliminated, the sectional area of the outer ring of the stator is increased, the magnetic saturation degree of the outer ring of the brake is favorably reduced, the hysteresis effect is reduced, the residual magnetism accumulation of the stator core caused by long-term operation of the brake is reduced, and the long-term reliability of the brake is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
Fig. 1 is a perspective view of a stator core of a conventional electromagnetic brake.
Fig. 2 is a front view schematically showing a stator core of a conventional electromagnetic brake.
3 FIG. 3 3 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 2 3. 3
Fig. 4 is a perspective view of the electromagnetic brake stator core of the present invention.
Fig. 5 is a front view of an electromagnetic brake stator core of the present invention.
3 FIG. 3 6 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 5 3. 3
Wherein: 101-prior art stator core, 102-prior art cylindrical body, 103-prior art mounting groove, 104-prior art resin through sealing groove, 105-prior art center hole, 106-prior art first hole, 107-prior art second hole, 108-prior art first groove.
1-stator core, 2-cylindrical body, 3-mounting groove, 4-insulating layer, 5-center hole, 6-first hole, 7-second hole and 8-first groove.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying figures 4-6:
as shown in fig. 4 to 6, the present invention provides an electromagnetic brake stator core 1, wherein the stator core 1 is formed with a coil winding installation groove 3, and an insulation layer 4 is formed on the bottom wall and the side wall of the installation groove 3. The bottom wall and the side wall of the mounting groove 3 form the insulating layer 4 by means of coating. The present invention may form the insulating layer 4 by means of resin coating.
The coating thickness of the insulating layer 4 of the stator core 1 is 0.6-0.8mm, and by adopting the coating thickness, insulation can be effectively formed, and materials are saved.
As shown in fig. 4 to 6, the stator core 1 includes a cylindrical body 2, the end surface of the cylindrical body 2 is formed with the mounting groove 3, and the mounting groove 3 is an annular groove. The cylindrical body 2 is further formed with a center hole 5 concentrically arranged with the mounting groove 3, the side surface of the cylindrical body 2 further comprises a first hole 6 communicated with the mounting groove 3, and the first hole 6 can be used for leading out a wiring of a coil winding.
The end face of the cylindrical body is also formed with a second hole 7 for fixing the stator core 1 to other components and a first slot 8 for mounting a spring.
The invention optimizes the structure of the stator core 1 of the existing electromagnetic brake and upgrades the stator component. The existing brake stator assembly needs to adopt a resin through sealing process for insulation treatment and coil fixation, and the production process is complex; the stator core 1 of this patent proposal has not only simplified the structure of stator core 1 itself (has cancelled difficult processing to pass through the sealed groove), can simplify the stopper production process simultaneously.
The resin coating process adopted by the invention is characterized in that the annular groove (the mounting groove 3) of the stator iron core 1 is subjected to insulation treatment in advance, so that the stator iron core 1 and the iron core groove are insulated to form a whole, thus a stator insulation treatment process (a through sealing process) in the production process is cancelled, an insulation sheet at the bottom of the groove is cancelled, brake assembly parts are reduced, the production process is simplified, and the production process flow of the electromagnetic brake is shortened. Through the optimization, the electromagnetic performance of the brake is improved, and the material cost and the production cost are reduced.
When the stator core 1 is installed in the coil assembly, the outer diameter of the coil framework can be in interference fit with the outer ring of the annular groove of the stator core 1, and the coil framework is an injection molding piece, so that the interference fit with small interference is adopted, the assembly is not influenced, and the coil winding can be fixed on the stator core 1. The bottom of the circular slot of the stator core 1 can be coated with epoxy glue to adhere the coil assembly and the stator core 1 together for fixation, so that the coil winding can not axially move when being electrified.
The coil winding can be wrapped in an insulating mode, insulating paint can be dripped into the winding, gaps among the coils are filled with the insulating paint, and heat dissipation of the coils is facilitated. When the requirement on heat dissipation is not high, the insulating paint can not be dripped.
The present invention also provides an electromagnetic brake having the stator core 1 according to the present invention.
The invention further provides a servomotor having the electromagnetic brake of the invention.
The stator core 1 of the invention can eliminate the stator through sealing process by coating the insulating layer 4 in the coil winding mounting groove 3, and eliminate the insulating sheet at the bottom of the mounting groove 3 (circular groove), thereby simplifying the production process, optimizing the structure of the stator core 1 and eliminating 3 circular gaps (resin through sealing grooves) in the circular groove. The structure of the stator core 1 is simplified, and the manufacturing cost of the stator core 1 can be reduced.
Has the advantages that:
the stator core 1 of the electromagnetic brake comprises a coil winding installation groove 3 formed on the stator core 1, and an insulation layer 4 is formed on the bottom wall and the side wall of the installation groove 3 in a coating mode. According to the invention, through arrangement of the insulating layer 4, a through sealing process of the stator core 1 can be eliminated, and the insulating sheet at the bottom of the mounting groove 3 is eliminated, so that the production process is simplified. Optimizing the structure of the stator core 1; meanwhile, as through sealing is not needed, a resin through sealing groove can be eliminated, and the manufacturing cost of the stator core 1 is reduced. Because the outer ring of the stator core 1 is a magnetic circuit component of the electromagnetic brake, after a resin through sealing groove is eliminated, the sectional area of the outer ring of the stator core 1 is increased, the magnetic saturation degree of the outer ring of the brake is favorably reduced, the hysteresis effect is reduced, the residual magnetism accumulation of the stator core 1 caused by the long-term work of the brake is reduced, and the long-term reliability of the brake is improved.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. An electromagnetic brake stator core (1), stator core (1) is formed with coil winding mounting groove (3), its characterized in that: and an insulating layer (4) is formed on the bottom wall and the side wall of the mounting groove (3).
2. The stator core (1) according to claim 1, characterized in that: the bottom wall and the side wall of the mounting groove (3) form the insulating layer (4) in a coating mode.
3. The stator core (1) according to claim 2, characterized in that: and forming the insulating layer (4) by adopting a resin coating mode.
4. A stator core (1) according to any of claims 1-3, characterized in that: the thickness of the insulating layer (4) is 0.6-0.8 mm.
5. A stator core (1) according to any of claims 1-3, characterized in that: stator core (1) includes cylindricality body (2), and the terminal surface of cylindricality body (2) is formed with mounting groove (3), mounting groove (3) are the ring channel.
6. Stator core (1) according to claim 5, characterized in that: the cylindrical body (2) is also provided with a central hole (5) concentrically arranged with the mounting groove (3).
7. Stator core (1) according to claim 5, characterized in that: the side surface of the cylindrical body (2) also comprises a first hole (6) communicated with the mounting groove (3).
8. Stator core (1) according to claim 5, characterized in that: the end surface of the cylindrical body (2) is also formed with a second hole (7) and a first groove (8).
9. An electromagnetic brake, characterized by: the electromagnetic brake has a stator core (1) according to any of claims 1 to 8.
10. A servo motor, characterized by: the servo motor has the electromagnetic brake of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015239.1A CN111181286A (en) | 2020-01-07 | 2020-01-07 | Stator core of electromagnetic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015239.1A CN111181286A (en) | 2020-01-07 | 2020-01-07 | Stator core of electromagnetic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111181286A true CN111181286A (en) | 2020-05-19 |
Family
ID=70649310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010015239.1A Pending CN111181286A (en) | 2020-01-07 | 2020-01-07 | Stator core of electromagnetic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111181286A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6222338B2 (en) * | 1979-02-28 | 1987-05-18 | Shibaura Eng Works Ltd | |
| JP2005006423A (en) * | 2003-06-12 | 2005-01-06 | Yaskawa Electric Corp | Vacuum motor and manufacturing method therefor |
| CN105605125A (en) * | 2016-02-25 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator structure of brake, manufacturing technology and electromagnetic brake |
| CN109595278A (en) * | 2018-11-28 | 2019-04-09 | 西安航天动力测控技术研究所 | A kind of high speed sheet electromagnetic brake |
| CN110535262A (en) * | 2019-09-05 | 2019-12-03 | 上海赢双电机有限公司 | Wound-rotor type rotation becomes insulating mechanism and its insulating treatment method |
-
2020
- 2020-01-07 CN CN202010015239.1A patent/CN111181286A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6222338B2 (en) * | 1979-02-28 | 1987-05-18 | Shibaura Eng Works Ltd | |
| JP2005006423A (en) * | 2003-06-12 | 2005-01-06 | Yaskawa Electric Corp | Vacuum motor and manufacturing method therefor |
| CN105605125A (en) * | 2016-02-25 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator structure of brake, manufacturing technology and electromagnetic brake |
| CN109595278A (en) * | 2018-11-28 | 2019-04-09 | 西安航天动力测控技术研究所 | A kind of high speed sheet electromagnetic brake |
| CN110535262A (en) * | 2019-09-05 | 2019-12-03 | 上海赢双电机有限公司 | Wound-rotor type rotation becomes insulating mechanism and its insulating treatment method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20200519 |