CN212909280U - Micromotor commutator with low-noise operation - Google Patents
Micromotor commutator with low-noise operation Download PDFInfo
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- CN212909280U CN212909280U CN202021813106.0U CN202021813106U CN212909280U CN 212909280 U CN212909280 U CN 212909280U CN 202021813106 U CN202021813106 U CN 202021813106U CN 212909280 U CN212909280 U CN 212909280U
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- commutator
- commutator segment
- locating piece
- low noise
- segment
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- 238000009413 insulation Methods 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 5
- 241000826860 Trapezium Species 0.000 claims 1
- 230000001629 suppression Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a low noise moving micromotor commutator, glue core, solid fixed ring, a plurality of locating piece and commutator segment including insulation support, insulation support glues the core middle part and is equipped with fixed disc, and the one end bottom that fixed disc was kept away from to the locating piece is equipped with outside lug that extends, is equipped with the bayonet socket in the locating piece of lug both sides respectively, and on the outer wall of core was glued in insulation support was encircleed to the commutator segment, the one end of commutator segment was located between the bayonet socket of double-phase adjacent locating piece. The utility model has the advantages that the plurality of commutator segments are arranged on the insulation support rubber core through the positioning blocks and the fixing rings, so that the installation is convenient, and the production efficiency of the assembly is improved; the bayonets and the bumps arranged on the positioning blocks can improve the installation stability of the commutator segments and prevent the commutator segments from loosening in the operation process; the copper-based wear-resistant layer arranged on the top of the commutator segment can effectively improve the wear resistance of the commutator segment, reduce contact resistance and noise, avoid the contact between the brush and burrs on the commutator segment to generate noise and sparks, and prolong the service life of the commutator.
Description
Technical Field
The utility model relates to a commutator field especially relates to a low noise moving micromotor commutator.
Background
Micro-motors, collectively referred to as "micro-motors," are commonly used in control systems or transmission mechanical loads to perform functions such as detection, analytical operation, amplification, execution, or conversion of electromechanical signals or energy. The commutator, also known as a commutator, is an important component of a direct current motor, and is a component which can enable the motor to continuously rotate, the commutator can convert direct current passing through the brush into alternating current in the winding or convert alternating electromotive force in the winding into direct electromotive force on the end of the brush, and the commutator is widely applied to the fields of electric tools, household appliances, automobiles, motorcycles and the like.
In the prior art, in the running process of a micromotor, a commutator needs to bear the action of centrifugal force and thermal stress, and can not loosen and deform, which puts higher requirements on the smoothness of the working surface and the structural stability of a commutator segment. The commutator segment on the market is easy to turn over and burr in the machining process, so that the electric brush can generate larger noise and spark in the contact process with the commutator segment, and the service life of the commutator is seriously influenced. In addition, most commutators on the market are of an overall structure which is not detachable, when a commutator segment of the commutators is abraded, the whole commutators and even the whole rotors need to be replaced, and the maintenance difficulty and the maintenance cost of the commutators are increased.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the micromotor commutator has the advantages of stable structure, simple assembly, convenient maintenance and stable operation and runs with low noise.
The technical scheme of the utility model as follows: a micromotor commutator with low noise operation comprises an insulation support rubber core which axially penetrates through, a fixing ring, a plurality of positioning blocks and a plurality of commutator segments, the middle part of the insulation support rubber core is provided with a fixed disc, the positioning blocks are arranged at intervals along the circumferential direction of the fixed disc, the positioning block is in a trapezoidal structure, the bottom of one end of the positioning block, which is far away from the fixed disc, is provided with a lug which extends outwards, bayonets are respectively arranged in the positioning blocks at the two sides of the convex block, the commutator bars are arranged on the outer wall of the insulating support rubber core in a surrounding way, one end of each commutator segment is positioned between the bayonets of the two adjacent positioning blocks, a radial groove is respectively arranged between the two adjacent commutator segments, the lug is arranged in the radial groove, a concave table is arranged at the top of each commutator segment, a copper-based wear-resistant layer is pressed on the concave table, and the fixing ring is sleeved on the commutator segments and is abutted against the side wall of the positioning block.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the end, close to the positioning block, of the commutator segment is provided with the terminal part.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the commutator segments on two sides of the terminal part are positioned in the bayonets of two adjacent positioning blocks, and two sides of the terminal part are respectively abutted against the side walls of the positioning blocks.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the terminal part is in a T-shaped structure and comprises a convex tooth section and a straight section, the bottom of the straight section is connected with a commutator segment, and the top of the straight section is connected with the convex tooth section.
By adopting the technical scheme, in the low-noise running micromotor commutator, the two sides of the convex tooth section are respectively provided with the arc structures, and the two sides of the straight section are respectively provided with the arc gaps.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the insulating support rubber core, the fixed disc and the positioning blocks are of an integrally formed structure.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the terminal part and the commutator segment are of an integrally formed structure.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the two sides of one end of the positioning block, which is far away from the fixed disc, are respectively provided with a tangent plane structure.
By adopting the technical scheme, in the micromotor commutator with low-noise operation, the height of the terminal part is greater than the distance between the edge of the fixed disc and the commutator segment.
By adopting the technical scheme, in the micromotor commutator with low noise operation, the height of the bump of the positioning block is smaller than that of the radial groove.
By adopting the technical proposal, the utility model installs a plurality of commutator segments on the insulation support rubber core through the positioning blocks and the fixing rings, thereby facilitating the installation and improving the production efficiency of assembly; the bayonets and the bumps arranged on the positioning blocks can improve the installation stability of the commutator segments and prevent the commutator segments from loosening in the operation process; the copper-based wear-resistant layer arranged on the top of the commutator segment can effectively improve the wear resistance of the commutator segment, reduce contact resistance and noise, prevent the electric brush from contacting with burrs on the commutator segment to generate noise and sparks, and prolong the service life of the commutator; the whole structure is stable, the assembly is simple, the production efficiency is high, the operation is low in noise, and the device can be popularized and used.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the commutator segment of the present invention;
FIG. 3 is a schematic view of the positioning block of the present invention;
fig. 4 is a schematic view of the commutator segment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, a micromotor commutator with low noise operation comprises an insulation support rubber core 1, a fixing ring 2, a plurality of positioning blocks 3 and a plurality of commutator segments 4 which axially penetrate through the micromotor commutator core, wherein a fixing disc 6 is arranged in the middle of the insulation support rubber core 1, the positioning blocks 3 are arranged at intervals along the circumferential direction of the fixing disc 6, the positioning blocks 3 are in a trapezoidal structure, a protruding block 31 which extends outwards is arranged at the bottom of one end of each positioning block 3 away from the fixing disc 6, bayonets 30 are respectively arranged in the positioning blocks 3 at two sides of the protruding block 31, the commutator segments 4 are arranged on the outer wall of the insulation support rubber core 1 in a surrounding manner, one end of each commutator segment 4 is positioned between the bayonets 30 of two adjacent positioning blocks 3, a radial groove 40 is respectively arranged between two adjacent commutator segments 4, the protruding block 31 is arranged in the radial groove 40, a concave table, the concave table 400 is pressed with a copper-based wear-resistant layer 5, and the fixing ring 2 is sleeved on the commutator segment 4 and is abutted against the side wall of the positioning block 3.
In this embodiment, the rubber core 1 of the insulation support can be connected with the rotating shaft of the rotor, the fixing disc 6 is arranged in the middle of the rubber core 1 of the insulation support, the positioning block 3 is arranged at intervals along the circumferential direction of the fixing disc 6, and the positioning block 3 can firmly fix the commutator segment 4 to prevent the commutator segment 4 from loosening in the operation process. Furthermore, the insulation support rubber core 1, the fixed disc 6 and the positioning blocks 3 are of an integrally formed structure. So set up, can improve the overall structure intensity of commutator, prevent that locating piece 3 from producing the deformation in the operation process, influencing the life of commutator. The bottom of one end of the positioning block 3 far away from the fixed disc 6 is provided with a convex block 31 extending outwards, bayonets 30 are respectively arranged in the positioning blocks 3 at two sides of the convex block 31, the commutator segment 4 is arranged on the outer wall of the insulation support rubber core 1 in a surrounding manner, and one end of the commutator segment 4 is positioned between the bayonets 30 of two adjacent positioning blocks 3. With the one end block of commutator segment 4 in bayonet socket 30 between two locating pieces 3, and carry out the compaction through solid fixed ring 2 to commutator segment 4 fixed, so set up, when improving 4 installation stability of commutator segment, still convenience of customers assembles, when the commutator segment 4 of damage needs to be changed, only need with solid fixed ring 2 from the insulating support glue core 1 in the slippage, then with commutator segment 4 from the inboard roll-off of bayonet socket 30 between two locating pieces 3 can, and is simple and convenient, effectively improve the convenience that the installation was dismantled to the commutator. In addition, the projection 31 of the positioning block 3 is arranged in the radial groove 40, so that the transverse displacement of the commutator segment 4 in the operation process can be effectively prevented, and the use stability of the commutator segment 4 is improved. The surface of the commutator segment 4 is inevitably burred in the processing process, and when the brush of the micro-motor is contacted with the commutator segment 4 for commutation, the brush can be scraped on the burred of the commutator segment 4, thereby generating larger noise and sparks. In the embodiment, the concave table 400 is arranged at the top of the commutator segment 4, and the copper-based wear-resistant layer 5 is pressed on the concave table 400, so that the electric brush of the micro motor can be directly contacted with the copper-based wear-resistant layer 5 in the concave table 400, and because the surface of the copper-based wear-resistant layer 5 is smooth, the noise and the spark generated in the operation process of the commutator can be effectively reduced, and the service life of the commutator is prolonged.
As shown in fig. 2, a terminal portion 41 is further disposed at one end of the commutator segment 4 close to the positioning block 3. In this embodiment, the terminal portion 41 can be connected to a rotor winding in the micro-motor to correspondingly connect the corresponding portion of the rotor winding to each of the segments 4.
Furthermore, the terminal portion 41 and the commutator segment 4 are integrally formed. In this embodiment, the terminal portion 41 and the commutator segment 4 are integrally formed, and thus, the structural strength of the terminal portion 41 can be improved and the mounting stability can be improved.
As shown in fig. 2 and 3, the commutator segments 4 on both sides of the terminal portion 41 are located in the notches 30 of two adjacent positioning blocks 3, and both sides of the terminal portion 41 are respectively abutted against the side walls of the positioning blocks 3. In this embodiment, the commutator segments 4 on both sides of the terminal portion 41 are clamped with the bayonets 30 of two adjacent positioning blocks 3, so as to improve the mounting stability of the commutator segments 4; the two sides of the terminal part 41 are respectively abutted against the side walls of the positioning block 3, so that the terminal part 41 can be prevented from driving the commutator segment 4 to shift in the operation process.
As shown in fig. 4, further, the terminal portion 41 has a T-shaped structure, the terminal portion 41 includes a convex tooth section 411 and a straight section 412, the bottom of the straight section 412 is connected to the commutator segment 4, and the top of the straight section 412 is connected to the convex tooth section 411. In this embodiment, the straight section 412 can facilitate the winding of the coil of the rotor winding, and the protruding tooth section 411 can provide a limiting and fixing function for the coil of the rotor winding.
As shown in fig. 4, further, arc structures 4110 are respectively disposed on two sides of the convex tooth section 411, and arc notches 4120 are respectively disposed on two sides of the straight section 412. In this embodiment, the arc structure 4110 and the arc notch 4120 are disposed to facilitate the coil introduction of the rotor winding.
As shown in fig. 2, further, the height of the terminal portion 41 is greater than the distance between the edge of the fixed disk 6 and the commutator segment 4. In this embodiment, the height of the terminal portion 41 is greater than the distance between the edge of the fixed disk 6 and the commutator segment 4, so that the terminal portion 41 and the coil of the rotor winding can be conveniently connected.
As shown in fig. 2, further, the height of the protrusion 31 of the positioning block 3 is smaller than the height of the radial groove 40.
As shown in fig. 3, further, two sides of one end of the positioning block 3 away from the fixed disc 6 are respectively provided with a tangent plane structure 300.
By adopting the technical proposal, the utility model installs a plurality of commutator segments on the insulation support rubber core through the positioning blocks and the fixing rings, thereby facilitating the installation and improving the production efficiency of assembly; the bayonets and the bumps arranged on the positioning blocks can improve the installation stability of the commutator segments and prevent the commutator segments from loosening in the operation process; the copper-based wear-resistant layer arranged on the top of the commutator segment can effectively improve the wear resistance of the commutator segment, reduce contact resistance and noise, prevent the electric brush from contacting with burrs on the commutator segment to generate noise and sparks, and prolong the service life of the commutator; the whole structure is stable, the assembly is simple, the production efficiency is high, the operation is low in noise, and the device can be popularized and used.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The micro-motor commutator with low-noise operation is characterized in that: including the insulation support rubber core that the axial runs through, solid fixed ring, a plurality of locating piece and a plurality of commutator segment, insulation support rubber core middle part is equipped with fixed disc, the locating piece is the interval setting along the circumferencial direction of fixed disc, the locating piece is the trapezium structure, the one end bottom that fixed disc was kept away from to the locating piece is equipped with the lug of outside extension, be equipped with the bayonet socket in the locating piece of lug both sides respectively, the commutator segment encircles on locating insulation support rubber core's the outer wall, just the one end of commutator segment is located between the bayonet socket of double-phase adjacent locating piece, and double-phase is adjacent be equipped with radial groove between the commutator segment respectively, radial groove is located to the lug in, each the commutator segment top is equipped with the concave station, the suppression has copper base wearing layer on the concave station, solid fixed ring cover is.
2. The low noise running micro-electromechanical commutator of claim 1, wherein: and a terminal part is arranged at one end of the reversing piece close to the positioning block.
3. The low noise running micro-electromechanical commutator of claim 2, wherein: the commutator bars on the two sides of the terminal part are positioned in the bayonets of the two adjacent positioning blocks, and the two sides of the terminal part are respectively abutted against the side walls of the positioning blocks.
4. The low noise running micro-electromechanical commutator of claim 2, wherein: the terminal part is of a T-shaped structure and comprises a convex tooth section and a straight section, the bottom of the straight section is connected with the commutator segment, and the top of the straight section is connected with the convex tooth section.
5. The low noise running micro-electromechanical commutator of claim 4, wherein: the two sides of the convex tooth section are respectively provided with an arc structure, and the two sides of the straight section are respectively provided with an arc notch.
6. The low noise running micro-electromechanical commutator of claim 1, wherein: the insulating support rubber core, the fixed disc and the positioning blocks are of an integrally formed structure.
7. The low noise running micro-electromechanical commutator of claim 2, wherein: the terminal part and the commutator segment are of an integrally formed structure.
8. The low noise running micro-electromechanical commutator of claim 1, wherein: and tangent plane structures are respectively arranged on two sides of one end of the positioning block, which is far away from the fixed disc.
9. The low noise running micro-electromechanical commutator of claim 2, wherein: the height of the terminal part is larger than the distance between the edge of the fixed disk and the commutator segment.
10. The low-noise operating micromotor commutator according to any one of claims 1 to 9, characterized in that: the height of the lug of the positioning block is smaller than that of the radial groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021813106.0U CN212909280U (en) | 2020-08-26 | 2020-08-26 | Micromotor commutator with low-noise operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021813106.0U CN212909280U (en) | 2020-08-26 | 2020-08-26 | Micromotor commutator with low-noise operation |
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| Publication Number | Publication Date |
|---|---|
| CN212909280U true CN212909280U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021813106.0U Active CN212909280U (en) | 2020-08-26 | 2020-08-26 | Micromotor commutator with low-noise operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991378A (en) * | 2021-12-09 | 2022-01-28 | 浙江利丰电器股份有限公司 | Hook-shaped commutator, processing technology and processing device thereof |
-
2020
- 2020-08-26 CN CN202021813106.0U patent/CN212909280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991378A (en) * | 2021-12-09 | 2022-01-28 | 浙江利丰电器股份有限公司 | Hook-shaped commutator, processing technology and processing device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Commutator for Micromotor with Low Noise Operation Effective date of registration: 20221018 Granted publication date: 20210406 Pledgee: Bank of China Limited by Share Ltd. Heyuan branch Pledgor: HEPING CHANGSHENG MOTOR CO.,LTD. Registration number: Y2022980018758 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210406 Pledgee: Bank of China Limited by Share Ltd. Heyuan branch Pledgor: HEPING CHANGSHENG MOTOR CO.,LTD. Registration number: Y2022980018758 |