CN112701546A - Hook-type commutator with mica ring - Google Patents
Hook-type commutator with mica ring Download PDFInfo
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- CN112701546A CN112701546A CN202011497615.1A CN202011497615A CN112701546A CN 112701546 A CN112701546 A CN 112701546A CN 202011497615 A CN202011497615 A CN 202011497615A CN 112701546 A CN112701546 A CN 112701546A
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- convex part
- mica
- commutator
- insulating sleeve
- hook
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/04—Commutators
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Abstract
A hook-type commutator with a mica ring comprises a bushing, an insulating sleeve, a group of commutator segments and a group of mica sheets, wherein the cross sections of the bushing and the insulating sleeve are both annular, the bushing is arranged on the inner wall of the insulating sleeve, the group of commutator segments and the group of mica sheets are arranged in an annular array mode by taking the center of the bushing as the center of a circle, and the group of commutator segments and the group of mica sheets are arranged at intervals; the mica sheet comprises a sheet body, a first positioning convex part, a second positioning convex part and a mica groove. The hook-type commutator with the mica ring has reasonable structural design, after the commutator is molded by injection, the mica sheets are not only extruded and fixed between the commutator sheets, but also the gourd-shaped mica sheet positioning convex part I and the gourd-shaped mica sheet positioning convex part II can be firmly combined with the insulating sleeve, so that the fastening force of the mica sheets in the commutator product is greatly increased, the mica sheets are effectively prevented from floating or flying out under the high-speed rotation state, and the quality of the commutator product is improved.
Description
Technical Field
The invention belongs to the technical field of commutators, and particularly relates to a hook-type commutator with a mica ring.
Background
The commutator is a component which is used for current commutation on a direct current motor and an alternating current series motor and is used for enabling the motor to continuously rotate downwards, and is commonly called as a commutator.
The hook-type commutator generally comprises a commutator base body and commutator copper sheets circumferentially arranged on the excircle of the commutator base body, wherein the basic structure of the commutator copper sheets is as follows: the commutator comprises a main sheet body and hook legs arranged on the inner side surface of the main sheet body, wherein when the commutator is formed, the main sheet body is implanted into a commutator base body through the hook legs and is firmly fixed with the commutator base body.
Most of the existing commutators comprise parts such as mica sheets, and the mica sheets have the function of realizing the inter-sheet insulation between the commutators. The mica sheets of the traditional commutator are rectangular sheet bodies, the mica sheets adopt a straight structure, the mica sheets are fixed between the commutator sheets due to the inter-sheet extrusion force between the commutator sheets after the commutator is injection molded, the mica sheets are basically separated from the plastic mold body of the commutator, and the inter-sheet extrusion force is limited, although the mica sheets are light, the mica sheets are easy to float or fly out from the surface of the commutator during the working process of the commutator rotating along with the motor at high speed, and great adverse effect is caused on the quality of a commutator product.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a hook-type commutator with mica rings, which solves the problem that in the prior art, the mica sheet is easy to separate from a commutation sheet due to unreasonable structural design of the mica sheet, so that the commutator fails.
The technical scheme is as follows: the invention provides a hook-type commutator with a mica ring, which comprises a bushing, an insulating sleeve, a group of commutator segments and a group of mica sheets, wherein the cross sections of the bushing and the insulating sleeve are both annular, the bushing is arranged on the inner wall of the insulating sleeve, the group of commutator segments and the group of mica sheets are arranged in an annular array mode by taking the center of the bushing as the circle center, and the group of commutator segments and the group of mica sheets are arranged at intervals; wherein, the mica sheet includes slice body, location convex part one, location convex part two and mica groove, location convex part one and location convex part two are all fixed to be set up on the edge that slice body is close to bush center one side, the mica groove is located between location convex part one and the location convex part two, be equipped with recess one and recess two on insulating sleeve's the outer wall, location convex part one sets up in recess one, location convex part two sets up in recess two, be equipped with convex part three between recess one and the recess two, convex part three sets up in the mica groove. According to the hook-type commutator with the mica rings, the commutator product manufactured by the mica sheets with the structure improves the fixing stability of the mica sheets in the commutator, and the mica sheets with special structures are arranged among a group of commutator sheets to play a role in improving the quality of the commutator product.
Furthermore, in the hook-type commutator with the mica rings, the cross sections of the first positioning convex part, the second positioning convex part, the first groove and the second groove are all in a gourd shape.
Further, foretell hook type commutator that has mica ring, location convex part one and location convex part two all include that oval convex part four, two symmetries set up the U type one of bending and the arc two of bending that two symmetries set up, the one end that insulating sleeve was kept away from to oval convex part four is equipped with opening one, the one end of the U type one of bending that two symmetries set up is connected with the both ends of oval convex part four respectively, the U type that two symmetries set up is bent one and the two one-to-one settings of the arc two of bending that two symmetries set up to arc two of bending and U type are bent one and are kept away from the one end of oval convex part four and are connected.
Further, in the hook-type commutator with the mica ring, the arc-shaped bending portion extends in a direction away from the outer side of the four centers of the elliptical convex portion in the two directions, and the arc-shaped bending portion two is a quarter arc.
Further, in the hook-type commutator with the mica ring, one side, close to the insulating sleeve, of the lower end portion of the sheet-shaped body is provided with the fifth rectangular convex portion, the lower end portion of the fifth rectangular convex portion is provided with the first sharp corner, the insulating sleeve is provided with the third rectangular groove, the fourth triangular groove is arranged in the third rectangular groove, the fifth rectangular convex portion is arranged in the third rectangular groove, and the first sharp corner is arranged in the fourth triangular groove.
Further, in the hook-type commutator with the mica ring, one end, close to the insulating sleeve, of the commutator segment is provided with at least one dovetail-shaped protrusion six, the outer wall of the insulating sleeve is provided with a dovetail-shaped groove five, and the dovetail-shaped protrusion six is arranged in the dovetail-shaped groove five.
Further, according to the hook-type commutator with the mica rings, one side, close to the insulating sleeve, of the lower end portion of the commutator bar is provided with the rectangular convex portion seven, the lower end portion of the rectangular convex portion seven is provided with the sharp corner two, the insulating sleeve is provided with the rectangular groove six, the rectangular convex portion seven is arranged in the rectangular groove six, and the sharp corner two is pressed into the inner wall of the rectangular groove six.
Further, in the hook-type commutator with the mica ring, the insulating sleeve is provided with a group of reinforcing rings.
Further, foretell hook type commutator that has mica ring, be equipped with a set of annular groove seven on the outer circumference of bush, a set of annular groove seven sets gradually along the axial of bush, be equipped with a set of annular convex part eight on insulating sleeve's the inner wall, a set of annular convex part eight sets gradually along insulating sleeve's axial, bush and insulating sleeve coaxial line set up, a set of annular groove seven and a set of eight one-to-one settings of annular convex part to eight settings of annular convex part are in annular groove seven.
Further, in the hook-type commutator with the mica ring, a reaming hole is formed in the inner wall of the lining, and the reaming hole is located at one end, provided with the hook, of the circulator.
The technical scheme shows that the invention has the following beneficial effects: the hook-type commutator with the mica ring has reasonable structural design, after the commutator is molded by injection, mica sheets are not only extruded and fixed between the commutator sheets, but also the gourd-shaped mica sheet positioning convex part I and the gourd-shaped mica sheet positioning convex part II can be firmly combined with the insulating sleeve, so that the fastening force of the mica sheets in a commutator product is greatly increased, the mica sheets are effectively prevented from floating or flying out under a high-speed rotation state, and the quality of the commutator product is improved; in addition, a sharp-angled structure on the mica sheet can generate certain tension force with the end face of the step of the commutator, so that the quality stability of the commutator is effectively improved.
Drawings
FIG. 1 is a schematic structural view of a hook commutator with mica rings according to the present invention;
FIG. 2 is an enlarged view of a portion of the invention at C of FIG. 1;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 1;
fig. 4 is a partial enlarged view of the invention at B in fig. 1.
In the figure: the anti-corrosion bushing comprises a bushing 1, an annular groove seven 11, a reaming 12, an insulating sleeve 2, a groove one 21, a groove two 22, a convex part three 23, a rectangular groove three 24, a triangular groove four 25, a dovetail groove five 26, a rectangular groove six 27, a reinforcing ring 28, an annular convex part eight 29, a commutator segment 3, a dovetail convex part six 31, a rectangular convex part seven 32, a sharp corner two 33, a mica sheet 4, a sheet body 41, a rectangular convex part five 411, a sharp corner one 412, a positioning convex part one 42, an oval convex part four 421, a U-shaped bending part one 422, an arc-shaped bending part two 423, an opening one 424, a positioning convex part two 43 and a mica groove 44.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
The hook-type commutator with the mica rings as shown in fig. 1 comprises a bushing 1, an insulating sleeve 2, a group of commutator segments 3 and a group of mica sheets 4, wherein the cross sections of the bushing 1 and the insulating sleeve 2 are both annular, the bushing 1 is arranged on the inner wall of the insulating sleeve 2, the group of commutator segments 3 and the group of mica sheets 4 are both arranged in an annular array mode by taking the center of the bushing 1 as the center of a circle, and the group of commutator segments 3 and the group of mica sheets 4 are arranged at intervals; wherein, mica sheet 4 includes slice body 41, location convex part 42, location convex part two 43 and mica groove 44, location convex part 42 and location convex part two 43 are all fixed to be set up on the edge that slice body 41 is close to bush 1 center one side, mica groove 44 is located between location convex part 42 and the location convex part two 43, be equipped with recess 21 and recess two 22 on the outer wall of insulating sleeve 2, location convex part 42 sets up in recess 21, location convex part two 43 sets up in recess two 22, be equipped with convex part three 23 between recess 21 and the recess two 22, convex part three 23 sets up in mica groove 44.
Example two
The cross sections of the first positioning convex part 42, the second positioning convex part 43, the first groove 21 and the second groove 22 shown in fig. 2 are gourd-shaped. In the structure, the first positioning convex part 42 and the second positioning convex part 43 respectively comprise a first U-shaped bending part 422 and a second arc bending part 423, wherein the first U-shaped bending part 422 and the second arc bending part 423 are symmetrically arranged, the first end, far away from the insulating sleeve 2, of the fourth elliptical convex part 421 is provided with a first opening 424, one end, far away from the insulating sleeve 2, of the first U-shaped bending part 422, of the two symmetrical U-shaped bending parts is respectively connected with two ends of the fourth elliptical convex part 421, the first U-shaped bending parts 422 and the second arc bending parts 423, one to one end, far away from the fourth elliptical convex part 421, of the second arc bending parts 423 and the first U-shaped bending parts 422 are arranged in a one-. The second arc-shaped bending part 423 extends in a direction away from the outer side of the center of the fourth elliptic convex part 421, and the second arc-shaped bending part 423 is a quarter of an arc. The mica sheet 4 adopting the structural design can improve the connection tightness between the mica sheet 4 and the insulating sleeve 2, thereby improving the stability of the whole commutator.
EXAMPLE III
As shown in fig. 3, a rectangular convex portion five 411 is arranged on one side of the lower end portion of the sheet-shaped body 41 close to the insulating sleeve 2, a sharp corner one 412 is arranged at the lower end portion of the rectangular convex portion five 411, a rectangular groove three 24 is arranged on the insulating sleeve 2, a triangular groove four 25 is arranged in the rectangular groove three 24, the rectangular convex portion five 411 is arranged in the rectangular groove three 24, and the sharp corner one 412 is arranged in the triangular groove four 25. The first sharp corner 412 is clamped in the fourth triangular groove 25, so that when the commutator is used, the effect of a part of centrifugal force on the mica sheet can be counteracted, and the stability of the mica sheet is improved.
In addition, one end of the commutator segment 3, which is close to the insulating sleeve 2, is provided with at least one dovetail-shaped convex part six 31, the outer wall of the insulating sleeve 2 is provided with a dovetail-shaped groove five 26, and the dovetail-shaped convex part six 31 is arranged in the dovetail-shaped groove five 26.
Example four
The commutator segment 3 shown in fig. 4 has a rectangular convex portion seven 32 on one side of the lower end portion close to the insulating sleeve 2, a pointed corner two 33 is arranged on the lower end portion of the rectangular convex portion seven 32, a rectangular groove six 27 is arranged on the insulating sleeve 2, the rectangular convex portion seven 32 is arranged in the rectangular groove six 27, and the pointed corner two 33 is pressed into the inner wall of the rectangular groove six 27. In addition, be equipped with a set of annular groove seven 11 on the outer circumference of bush 1, a set of annular groove seven 11 sets gradually along the axial of bush 1, be equipped with a set of annular convex part eight 29 on the inner wall of insulating sleeve 2, a set of annular convex part eight 29 sets gradually along the axial of insulating sleeve 2, bush 1 and insulating sleeve 2 coaxial line set up, a set of annular groove seven 11 and a set of annular convex part eight 29 one-to-one set up to annular convex part eight 29 sets up in annular groove seven 11.
During assembly, the second sharp corner 33 is pressed on the sixth rectangular groove 27, and interference fit between the seventh rectangular convex part 32 and the sixth rectangular groove 27 is achieved, so that stability in a connection process is improved.
In addition, a set of reinforcing rings 28 is provided on the insulating sleeve 2. Be equipped with reaming 12 on the inner wall of bush 1, reaming 12 is located the circulator one end that is equipped with hook portion.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (10)
1. A hook commutator with mica rings is characterized in that: the commutator comprises a bushing (1), an insulating sleeve (2), a group of commutator segments (3) and a group of mica sheets (4), wherein the cross sections of the bushing (1) and the insulating sleeve (2) are both annular, the bushing (1) is arranged on the inner wall of the insulating sleeve (2), the group of commutator segments (3) and the group of mica sheets (4) are arranged in an annular array mode by taking the center of the bushing (1) as the center of a circle, and the group of commutator segments (3) and the group of mica sheets (4) are arranged at intervals;
wherein, mica sheet (4) include slice body (41), location convex part (42), location convex part two (43) and mica groove (44), location convex part (42) and location convex part two (43) are all fixed to be set up on slice body (41) are close to the edge of bush (1) center one side, mica groove (44) are located between location convex part (42) and location convex part two (43), be equipped with recess one (21) and recess two (22) on the outer wall of insulating sleeve (2), location convex part one (42) set up in recess one (21), location convex part two (43) set up in recess two (22), be equipped with convex part three (23) between recess one (21) and recess two (22), convex part three (23) set up in mica groove (44).
2. The hook-type commutator with mica rings of claim 1, wherein: the cross sections of the first positioning convex part (42), the second positioning convex part (43), the first groove (21) and the second groove (22) are gourd-shaped.
3. The hook-type commutator with mica rings of claim 1, wherein: location convex part one (42) and location convex part two (43) all include that the U type that oval convex part four (421), two symmetries set up bends one (422) and two (423) of arc that two symmetries set up, the one end that insulating sleeve (2) were kept away from in oval convex part four (421) is equipped with opening one (424), the one end that the U type that two symmetries set up bent one (422) is connected with the both ends of oval convex part four (421) respectively, the U type that two symmetries set up is bent one (422) and the arc that two symmetries set up and is bent two (423) one-to-one setting to the arc is bent one (423) and U type are bent one (422) and is kept away from the one end of oval convex part four (421) and is connected.
4. The hook-type commutator with mica rings of claim 3, wherein: the second arc-shaped bending part (423) extends towards the direction far away from the outer side of the center of the fourth oval convex part (421), and the second arc-shaped bending part (423) is a quarter of arc.
5. The hook-type commutator with mica rings of claim 1, wherein: one side that the lower tip of slice body (41) is close to insulating sleeve (2) is equipped with rectangle convex part five (411), the lower tip of rectangle convex part five (411) is equipped with closed angle one (412), be equipped with rectangle recess three (24) on insulating sleeve (2), be equipped with triangle-shaped recess four (25) in rectangle recess three (24), rectangle convex part five (411) set up in rectangle recess three (24), closed angle one (412) set up in triangle-shaped recess four (25).
6. The hook-type commutator with mica rings of claim 1, wherein: one end, close to the insulating sleeve (2), of the commutator segment (3) is provided with at least one dovetail-shaped convex part six (31), the outer wall of the insulating sleeve (2) is provided with a dovetail-shaped groove five (26), and the dovetail-shaped convex part six (31) is arranged in the dovetail-shaped groove five (26).
7. The hook-type commutator with mica rings of claim 6, wherein: one side of the lower end part of the commutator segment (3) close to the insulating sleeve (2) is provided with a rectangular convex part seven (32), the lower end part of the rectangular convex part seven (32) is provided with a sharp corner two (33), the insulating sleeve (2) is provided with a rectangular groove six (27), the rectangular convex part seven (32) is arranged in the rectangular groove six (27), and the sharp corner two (33) is pressed into the inner wall of the rectangular groove six (27).
8. The hook-type commutator with mica rings of claim 1, wherein: a group of reinforcing rings (28) are arranged on the insulating sleeve (2).
9. The hook-type commutator with mica rings of claim 1, wherein: be equipped with a set of annular groove seven (11) on the outer circumference of bush (1), a set of annular groove seven (11) sets gradually along the axial of bush (1), be equipped with a set of annular convex part eight (29) on the inner wall of insulating sleeve (2), a set of annular convex part eight (29) sets gradually along the axial of insulating sleeve (2), bush (1) and insulating sleeve (2) coaxial line set up, a set of annular groove seven (11) and a set of annular convex part eight (29) one-to-one set up to annular convex part eight (29) set up in annular groove seven (11).
10. The hook-type commutator with mica rings of claim 8, wherein: be equipped with reaming (12) on the inner wall of bush (1), reaming (12) are located the circulator and are equipped with the one end of hook portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497615.1A CN112701546A (en) | 2020-12-17 | 2020-12-17 | Hook-type commutator with mica ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497615.1A CN112701546A (en) | 2020-12-17 | 2020-12-17 | Hook-type commutator with mica ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112701546A true CN112701546A (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011497615.1A Pending CN112701546A (en) | 2020-12-17 | 2020-12-17 | Hook-type commutator with mica ring |
Country Status (1)
| Country | Link |
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| CN (1) | CN112701546A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09252564A (en) * | 1996-03-14 | 1997-09-22 | Matsushita Electric Ind Co Ltd | Commutator and commutator motor |
| JP2002369455A (en) * | 2001-06-04 | 2002-12-20 | Hitachi Koki Co Ltd | Commutator |
| CN202651577U (en) * | 2012-05-30 | 2013-01-02 | 张维 | Commutator mica sheet |
| CN104682152A (en) * | 2013-11-29 | 2015-06-03 | 常州五王电机有限公司 | Commutator |
| CN205104732U (en) * | 2015-11-19 | 2016-03-23 | 华瑞电器股份有限公司 | Commutator of switching -over piece latch closure structure |
| CN205960380U (en) * | 2016-06-13 | 2017-02-15 | 薛瑞华 | Take commutator of beaded finish location |
| CN207490257U (en) * | 2017-11-06 | 2018-06-12 | 江苏安固电器有限公司 | A kind of Hooked reverser with mica collar |
| CN109818223A (en) * | 2019-03-07 | 2019-05-28 | 江苏利丰机电有限公司 | A kind of motor reinforced commutator |
| CN109962386A (en) * | 2017-12-22 | 2019-07-02 | 宁波胜克换向器有限公司 | A kind of reinforcement type hook-type commutator |
| CN210224545U (en) * | 2019-08-27 | 2020-03-31 | 瑞安市成得电器有限公司 | Reinforced commutator |
| CN212011540U (en) * | 2020-06-05 | 2020-11-24 | 鹰潭拓新机电股份有限公司 | Carbon deposit prevention commutator |
-
2020
- 2020-12-17 CN CN202011497615.1A patent/CN112701546A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09252564A (en) * | 1996-03-14 | 1997-09-22 | Matsushita Electric Ind Co Ltd | Commutator and commutator motor |
| JP2002369455A (en) * | 2001-06-04 | 2002-12-20 | Hitachi Koki Co Ltd | Commutator |
| CN202651577U (en) * | 2012-05-30 | 2013-01-02 | 张维 | Commutator mica sheet |
| CN104682152A (en) * | 2013-11-29 | 2015-06-03 | 常州五王电机有限公司 | Commutator |
| CN205104732U (en) * | 2015-11-19 | 2016-03-23 | 华瑞电器股份有限公司 | Commutator of switching -over piece latch closure structure |
| CN205960380U (en) * | 2016-06-13 | 2017-02-15 | 薛瑞华 | Take commutator of beaded finish location |
| CN207490257U (en) * | 2017-11-06 | 2018-06-12 | 江苏安固电器有限公司 | A kind of Hooked reverser with mica collar |
| CN109962386A (en) * | 2017-12-22 | 2019-07-02 | 宁波胜克换向器有限公司 | A kind of reinforcement type hook-type commutator |
| CN109818223A (en) * | 2019-03-07 | 2019-05-28 | 江苏利丰机电有限公司 | A kind of motor reinforced commutator |
| CN210224545U (en) * | 2019-08-27 | 2020-03-31 | 瑞安市成得电器有限公司 | Reinforced commutator |
| CN212011540U (en) * | 2020-06-05 | 2020-11-24 | 鹰潭拓新机电股份有限公司 | Carbon deposit prevention commutator |
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Application publication date: 20210423 |
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