CN112398289A - Motor commutator - Google Patents

Motor commutator Download PDF

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Publication number
CN112398289A
CN112398289A CN202011168148.8A CN202011168148A CN112398289A CN 112398289 A CN112398289 A CN 112398289A CN 202011168148 A CN202011168148 A CN 202011168148A CN 112398289 A CN112398289 A CN 112398289A
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CN
China
Prior art keywords
wall
fixedly connected
brush
copper sheet
magnetic pole
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.)
Withdrawn
Application number
CN202011168148.8A
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Chinese (zh)
Inventor
旷军平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Mingde Electric Appliance Co ltd
Original Assignee
Jiangxi Mingde Electric Appliance Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Mingde Electric Appliance Co ltd filed Critical Jiangxi Mingde Electric Appliance Co ltd
Priority to CN202011168148.8A priority Critical patent/CN112398289A/en
Publication of CN112398289A publication Critical patent/CN112398289A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/10—Arrangements of brushes or commutators specially adapted for improving commutation
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Dc Machiner (AREA)

Abstract

The invention discloses a motor commutator, which aims at solving the problem that the working efficiency of an existing motor is low because a front end cover and a rear end cover cannot be simultaneously and effectively radiated by a radiating fan arranged in the existing motor. When the rotating shaft rotates, the heat dissipation fan at one end of the rotating shaft is driven to rotate to suck air inside the motor, and due to the design relation between the reversing magnetic pole and the main magnetic pole inside the mounting frame, a communication gap exists between the front end cover and the rear end cover, so that the device can be guaranteed to be well cooled under the action of the heat dissipation fan.

Description

Motor commutator
Technical Field
The invention relates to the technical field of direct current motors, in particular to a motor commutator.
Background
Currently, a dc motor is a motor that converts dc electrical energy into mechanical energy. The speed-regulating device is widely applied to electric traction due to good speed-regulating performance. The DC motor is divided into 3 types of permanent magnet, separately excited and self-excited according to the excitation mode, wherein the self-excited is divided into 3 types of shunt excitation, series excitation and compound excitation. When a direct current power supply supplies power to the armature winding through the electric brush, the lower conductor of the N pole on the surface of the armature can flow current in the same direction, and the conductor is subjected to the action of counterclockwise torque according to the left-hand rule; the lower conductor of the S pole of the armature surface also flows current in the same direction, and the conductor is subjected to moment in the counterclockwise direction according to the left-hand rule. Thus, the whole armature winding, i.e. the rotor, rotates anticlockwise, and the input direct current electric energy is converted into mechanical energy output on the rotor shaft. The stator is composed of a stator and a rotor, wherein the stator: a base, a main magnetic pole, a commutating pole, a brush device and the like; rotor (armature): armature core, armature winding, commutator, rotating shaft and fan. The commutator is formed by insulating cylinders formed by a plurality of pieces by mica, and two ends of each coil of the armature winding are respectively connected with two commutator pieces. The commutator in the DC generator is used for converting alternating electromotive heat in the armature winding into direct current electromotive force between the brushes, current passes through the load, the DC generator outputs electric power to the load, and current certainly passes through the armature coil. It interacts with the magnetic field to develop an electromagnetic torque, which tends to oppose the generator, and the original idea is to suppress this magnetic field torque only to initiate armature changes. Therefore, the generator outputs mechanical power from its original idea while outputting electric power to the load, and the dc generator completes the function of converting mechanical energy into electric energy.
The existing motor commutator has the following problems: the motor is in the course of the work, and especially when high power work, the inside generating heat of motor is very obvious, and serious generating heat can influence the inside structure of motor, and the inside heat dissipation fan that sets up of current motor can't be with the front and back end cover effective heat dissipation simultaneously, leads to the work efficiency of motor lower, and this type of problem is difficult to solve to current patent, consequently, needs a motor commutator to solve above-mentioned problem urgently.
Disclosure of Invention
Based on the technical problem that the working efficiency of a motor is low due to the fact that a heat dissipation fan arranged in the motor cannot effectively dissipate heat of a front end cover and a rear end cover at the same time in the existing motor commutator, the invention provides the motor commutator.
In order to achieve the purpose, the invention adopts the following technical scheme:
a motor commutator comprises a mounting frame, wherein a commutating magnetic pole N and a commutating magnetic pole S are fixedly connected to the inner walls of two sides of the mounting frame through bolts respectively, the two commutating magnetic poles are in relative positions, the same bearing sleeve is fixedly connected between the commutating magnetic pole N and the commutating magnetic pole S, a front end cover is fixedly connected to one side of the mounting frame, a rotating shaft is connected to the outer wall of one side of the front end cover through a bearing, the outer wall of the rotating shaft is fixedly connected to the inner wall, close to one section, of the bearing sleeve, a coil is arranged on the outer wall of the rotating shaft, a commutator body is arranged on the outer wall, close to the central position, of the rotating shaft, a first electric brush table and a second electric brush table are fixedly connected to the inner walls of two sides of the commutator body through bolts respectively, a first electric brush is arranged on the outer wall of one, the commutator comprises a commutator body, and is characterized in that a first ring copper sheet and a second ring copper sheet are fixedly connected to the outer wall of the rotating shaft, the positions of the first ring copper sheet and the second ring copper sheet are located inside the commutator body, one end of a first electric brush is connected to the outer wall of the first ring copper sheet in a movable mode, one end of a second electric brush is connected to the outer wall of the second ring copper sheet in a movable mode, conducting wires are fixedly connected to the outer walls of the first ring copper sheet and the second ring copper sheet in a fixed mode, one ends of the conducting wires are fixedly connected to the left side and the right side of a coil respectively, and external electric wires are fixedly connected to the outer wall of one side of a first electric.
As a still further scheme of the invention: the supporting legs are fixedly connected to the outer walls of the two sides of the front end cover, the bottom ends of the two supporting legs are fixedly connected with base plates respectively, and screws are connected to the two sides of the outer walls of the tops of the two base plates through threads.
As a still further scheme of the invention: the outer wall of one side of the mounting frame is fixedly connected with a junction box, and the outer wall of one side of the junction box is provided with a wire inserting hole.
As a still further scheme of the invention: the outer wall of one side of the mounting rack is fixedly connected with a rear end cover, and the outer wall of one side of the rear end cover is provided with radiating holes distributed at equal intervals.
As a still further scheme of the invention: and a main magnetic pole is fixedly connected to the inner wall of one side of the mounting rack and is positioned between the reversing magnetic pole N and the reversing magnetic pole S.
As a still further scheme of the invention: one end of the rotating shaft is connected with an installation buckle through a bearing, and the outer wall of the installation buckle is fixedly connected with radiating fans distributed at equal intervals.
As a still further scheme of the invention: and the outer wall of one side of the rear end cover is fixedly connected with a dust cover.
As a still further scheme of the invention: and air holes are distributed on the outer wall of one side of the dust cover at equal intervals.
The invention has the beneficial effects that:
1. the direct current motor is characterized in that a heat dissipation fan and a mounting frame are arranged, current enters a first brush and a second brush, one ends of the first brush and the second brush are respectively connected to the outer walls of a first ring copper sheet and a second ring copper sheet in a contact mode, the first ring copper sheet and the second ring copper sheet are respectively connected with conducting wires, the two conducting wires are respectively connected with two sides of a coil, after the coil is powered on, the current is matched with a reversing magnetic pole N and a reversing magnetic pole S on the periphery of the coil, the coil drives a rotating shaft to rotate under electromagnetic induction, the working effect of the direct current motor is achieved, when the rotating shaft rotates, the heat dissipation fan at one end of the rotating shaft is driven to rotate to suck air inside the motor, due to the design relationship between the reversing magnetic pole inside the mounting frame and a main magnetic pole, a communication gap exists between a front end cover and a rear end cover, and under;
2. the coil drives the rotating shaft to rotate under electromagnetic induction by arranging the first ring copper sheet and the second ring copper sheet, the two conducting wires are respectively connected with two sides of the coil, after the coil is electrified, current is matched with the reversing magnetic pole N and the reversing magnetic pole S on the periphery of the coil, and the first electric brush and the second electric brush are continuously switched and are respectively contacted with the first ring copper sheet and the second ring copper sheet during rotation, so that the continuous unidirectional rotation of the coil is realized, the working effect of the direct-current motor is finished, the two complementary ring copper sheets effectively finish different switching of the electric brushes, and the design is ingenious;
3. through the dust cover that sets up, inside the motor can effectively completely cut off the heat dissipation fan to bring the dust into to the dust of one side installation of heat dissipation fan, the dust cover is the one side of joint rear end cap, and after motor work a period, can go down the dust cover and wash alone, the cleanness of position maintenance device, the gas hole business turn over that dust cover one side outer wall can be followed in the gaseous switching, and device work is more stable.
Drawings
Fig. 1 is a perspective structural view of an embodiment 1 of a motor commutator according to the present invention;
fig. 2 is a perspective cross-sectional view of an embodiment 1 of a motor commutator according to the present invention;
fig. 3 is a schematic structural diagram of the inside of a commutator body of an embodiment 1 of the motor commutator provided by the invention;
fig. 4 is a cross-sectional view of a rear end cover of an embodiment 1 of the motor commutator provided by the invention;
fig. 5 is a perspective structural view of an embodiment 2 of the motor commutator according to the present invention.
In the figure: the magnetic brush comprises a backing plate 1, a rotating shaft 2, a front end cover 3, a mounting frame 4, a rear end cover 5, a junction box 6, a supporting leg 7, a screw 8, a coil 9, a main magnetic pole 10, a commutator body 11, heat dissipation holes 12, a first brush table 13, a second brush table 14, a first ring copper sheet 15, a second ring copper sheet 16, a first brush 17, a second brush 18, an external electric wire 19, a heat dissipation fan 20, a commutation magnetic pole N21, a commutation magnetic pole S22, a conducting wire 23, air holes 24 and a dust cover 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-4, a commutator for an electric motor comprises a mounting frame 4, a commutating magnetic pole N21 and a commutating magnetic pole S22 are fixedly connected to the inner walls of the two sides of the mounting frame 4 through bolts respectively, the two commutating magnetic poles are in opposite positions, the same bearing sleeve is fixedly connected between the commutating magnetic pole N21 and the commutating magnetic pole S22, a front end cover 3 is fixedly connected to one side of the mounting frame 4, a rotating shaft 2 is connected to the outer wall of one side of the front end cover 3 through a bearing, the outer wall of the rotating shaft 2 is fixedly connected to the inner wall of the bearing sleeve near one section, a coil 9 is arranged on the outer wall of the rotating shaft 2, a commutator body 11 is arranged on the outer wall of the rotating shaft 2 near the central position, first brushes 17 and second brushes 18 are fixedly connected to the inner walls of the two sides of the commutator body 11 through bolts respectively, a first brush 17 and a second brush 18 are arranged on the outer wall, a first ring copper sheet 15 and a second ring copper sheet 16 are fixedly connected to the outer wall of the rotating shaft 2, the positions of the first ring copper sheet 15 and the second ring copper sheet 16 are both located inside the commutator body 11, one end of a first brush 17 is connected and movably connected to the outer wall of the first ring copper sheet 15, one end of a second brush 18 is movably connected to the outer wall of the second ring copper sheet 16, the outer walls of the first ring copper sheet 15 and the second ring copper sheet 16 are both fixedly connected with conducting wires 23, one ends of the two conducting wires 23 are respectively and fixedly connected to the left side and the right side of the coil 9, the outer walls of one sides of the first brush 17 table 13 and the second brush 18 table 14 are both and fixedly connected with external electric wires 19, current enters the first brush 17 and the second brush 18, one ends of the first brush 17 and the second brush 18 are respectively and contactingly connected to the outer walls of the first ring copper sheet 15 and the second ring copper sheet 16, and the first ring copper sheet 15 and the second ring copper sheet 16 are, two conducting wires 23 are respectively connected with two sides of a coil 9, after the conducting wires are electrified, current is matched with a reversing magnetic pole N21 and a reversing magnetic pole S22 on the periphery of the coil 9, the coil 9 drives a rotating shaft 2 to start rotating under electromagnetic induction, when the rotating shaft rotates, a first electric brush 17 and a second electric brush 18 are switched continuously and are respectively contacted with a first annular copper sheet 15 and a second annular copper sheet 16, the continuous unidirectional rotation of the coil 9 is realized, the working effect of a direct current motor is completed, when the rotating shaft 2 rotates, a heat dissipation fan 20 at one end of the rotating shaft 2 is driven to rotate to suck air inside the motor, due to the design relation between the reversing magnetic pole inside the mounting frame 4 and a main magnetic pole 10, a communication gap exists between the front end cover 3 and the rear end cover 5, and under the action of the heat dissipation fan 20, the good heat.
According to the invention, the outer walls of the two sides of the front end cover 3 are fixedly connected with the supporting legs 7, the bottom ends of the two supporting legs 7 are respectively and fixedly connected with the base plates 1, and the two sides of the outer wall of the top of the two base plates 1 are both connected with the screws 8 through threads, so that the device can be more stably placed on a workbench.
In the invention, the outer wall of one side of the mounting frame 4 is fixedly connected with the junction box 6, the outer wall of one side of the junction box 6 is provided with a wire inserting hole, and the wire inserting hole is responsible for being connected with an external power supply.
In the invention, the rear end cover 5 is fixedly connected to the outer wall of one side of the mounting frame 4, the heat dissipation holes 12 are distributed at equal intervals on the outer wall of one side of the rear end cover 5, and the heat dissipation holes 12 are communicated with the outside of the device to ensure the heat dissipation inside the device.
In the invention, a main magnetic pole 10 is fixedly connected on the inner wall of one side of the mounting rack 4, the main magnetic pole 10 is positioned between the reversing magnetic pole N21 and the reversing magnetic pole S22, and a communicating gap exists between the front end cover 3 and the rear end cover 5 due to the design relationship between the reversing magnetic pole and the main magnetic pole 10 in the mounting rack 4.
In the invention, one end of the rotating shaft 2 is connected with a mounting buckle through a bearing, the outer wall of the mounting buckle is fixedly connected with radiating fans 20 distributed at equal intervals, and the radiating fans 20 are matched with the radiating holes 12 to ensure the circulation of internal gas.
In the invention, the dust cover 25 is fixedly connected on the outer wall of one side of the rear end cover 5, the dust cover 25 arranged on one side of the heat dissipation fan 20 can effectively isolate the heat dissipation fan 20 from bringing dust into the motor, and gas switching can be carried out from the air hole 24 on the outer wall of one side of the dust cover 25, so that the device works more stably.
When the direct current motor is used, an external power supply is connected to a wire inserting hole on the junction box 6, then the external power supply is connected with an internal external wire 19, a power switch is turned on, current enters the first electric brush 17 and the second electric brush 18, one end of the first electric brush 17 and one end of the second electric brush 18 are respectively connected to the outer walls of the first copper ring sheet 15 and the second copper ring sheet 16 in a contact mode, the first copper ring sheet 15 and the second copper ring sheet 16 are respectively connected with the conducting wires 23, the two conducting wires 23 are respectively connected with the two sides of the coil 9, after the power is turned on, the current is matched with a reversing magnetic pole N21 and a reversing magnetic pole S22 on the periphery of the coil 9, the coil 9 drives the rotating shaft 2 to start to rotate under the electromagnetic induction, the first electric brush 17 and the second electric brush 18 are continuously switched to be respectively contacted with the first copper ring sheet 15 and the second copper ring sheet 16 during the rotation, the continuous, when the rotating shaft 2 rotates, the heat dissipation fan 20 which drives one end of the rotating shaft 2 rotates to suck air to the inside of the motor, and due to the design relation between the reversing magnetic pole inside the mounting frame 4 and the main magnetic pole 10, a communicating gap exists between the front end cover 3 and the rear end cover 5, and under the action of the heat dissipation fan 20, the device can be guaranteed to be well cooled.
Example 2
Referring to fig. 5, a commutator for an electric motor comprises a mounting frame 4, a commutating magnetic pole N21 and a commutating magnetic pole S22 are fixedly connected to the inner walls of two sides of the mounting frame 4 through bolts respectively, the two commutating magnetic poles are in opposite positions, the same bearing sleeve is fixedly connected between the commutating magnetic pole N21 and the commutating magnetic pole S22, a front end cover 3 is fixedly connected to one side of the mounting frame 4, a rotating shaft 2 is connected to the outer wall of one side of the front end cover 3 through a bearing, the outer wall of the rotating shaft 2 is fixedly connected to the inner wall of a section close to the bearing sleeve, a coil 9 is arranged on the outer wall of the rotating shaft 2, a commutator body 11 is arranged on the outer wall of the rotating shaft 2 close to the central position, a first brush 17 stage 13 and a second brush 18 stage 14 are fixedly connected to the inner walls of two sides of the commutator body 11 through bolts respectively, a first brush 17 stage 13 is arranged on, a first ring copper sheet 15 and a second ring copper sheet 16 are fixedly connected to the outer wall of the rotating shaft 2, the positions of the first ring copper sheet 15 and the second ring copper sheet 16 are both located inside the commutator body 11, one end of a first brush 17 is connected and movably connected to the outer wall of the first ring copper sheet 15, one end of a second brush 18 is movably connected to the outer wall of the second ring copper sheet 16, the outer walls of the first ring copper sheet 15 and the second ring copper sheet 16 are both fixedly connected with conducting wires 23, one ends of the two conducting wires 23 are respectively and fixedly connected to the left side and the right side of the coil 9, the outer walls of one sides of the first brush 17 table 13 and the second brush 18 table 14 are both and fixedly connected with external electric wires 19, current enters the first brush 17 and the second brush 18, one ends of the first brush 17 and the second brush 18 are respectively and contactingly connected to the outer walls of the first ring copper sheet 15 and the second ring copper sheet 16, and the first ring copper sheet 15 and the second ring copper sheet 16 are, two conducting wires 23 are respectively connected with two sides of a coil 9, after the conducting wires are electrified, current is matched with a reversing magnetic pole N21 and a reversing magnetic pole S22 on the periphery of the coil 9, the coil 9 drives a rotating shaft 2 to start rotating under electromagnetic induction, when the rotating shaft rotates, a first electric brush 17 and a second electric brush 18 are switched continuously and are respectively contacted with a first annular copper sheet 15 and a second annular copper sheet 16, the continuous unidirectional rotation of the coil 9 is realized, the working effect of a direct current motor is completed, when the rotating shaft 2 rotates, a heat dissipation fan 20 at one end of the rotating shaft 2 is driven to rotate to suck air inside the motor, due to the design relation between the reversing magnetic pole inside the mounting frame 4 and a main magnetic pole 10, a communication gap exists between the front end cover 3 and the rear end cover 5, and under the action of the heat dissipation fan 20, the good heat.
According to the invention, the outer walls of the two sides of the front end cover 3 are fixedly connected with the supporting legs 7, the bottom ends of the two supporting legs 7 are respectively and fixedly connected with the base plates 1, and the two sides of the outer wall of the top of the two base plates 1 are both connected with the screws 8 through threads, so that the device can be more stably placed on a workbench.
In the invention, the outer wall of one side of the mounting frame 4 is fixedly connected with the junction box 6, the outer wall of one side of the junction box 6 is provided with a wire inserting hole, and the wire inserting hole is responsible for being connected with an external power supply.
In the invention, the rear end cover 5 is fixedly connected to the outer wall of one side of the mounting frame 4, the heat dissipation holes 12 are distributed at equal intervals on the outer wall of one side of the rear end cover 5, and the heat dissipation holes 12 are communicated with the outside of the device to ensure the heat dissipation inside the device.
In the invention, a main magnetic pole 10 is fixedly connected on the inner wall of one side of the mounting rack 4, the main magnetic pole 10 is positioned between the reversing magnetic pole N21 and the reversing magnetic pole S22, and a communicating gap exists between the front end cover 3 and the rear end cover 5 due to the design relationship between the reversing magnetic pole and the main magnetic pole 10 in the mounting rack 4.
In the invention, one end of the rotating shaft 2 is connected with a mounting buckle through a bearing, the outer wall of the mounting buckle is fixedly connected with radiating fans 20 distributed at equal intervals, and the radiating fans 20 are matched with the radiating holes 12 to ensure the circulation of internal gas.
In the invention, the dust cover 25 is fixedly connected on the outer wall of one side of the rear end cover 5, the dust cover 25 arranged on one side of the heat dissipation fan 20 can effectively isolate the heat dissipation fan 20 from bringing dust into the motor, and gas switching can be carried out from the air hole 24 on the outer wall of one side of the dust cover 25, so that the device works more stably.
Compared with embodiment 1, the present embodiment further includes that the dust cover 25 has air holes 24 distributed equidistantly on an outer wall of one side.
When the device is used, the dust cover 25 arranged on one side of the heat dissipation fan 20 can effectively isolate the heat dissipation fan 20 from bringing dust into the motor, gas can enter and exit from the air hole 24 in the outer wall of one side of the dust cover 25 in a gas switching mode, and the device works more stably.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides a motor commutator, includes mounting bracket (4), its characterized in that, respectively through bolt fixedly connected with switching-over magnetic pole N (21) and switching-over magnetic pole S (22), two on the both sides inner wall of mounting bracket (4) the switching-over magnetic pole is in relative position, the same bearing sleeve of fixedly connected with between switching-over magnetic pole N (21) and the switching-over magnetic pole S (22), one side fixedly connected with front end housing (3) of mounting bracket (4), be connected with pivot (2) through the bearing on the one side outer wall of front end housing (3), the outer wall fixed connection of pivot (2) is on bearing sleeve is close to one section inner wall, be equipped with coil (9) on the outer wall of pivot (2), be equipped with commutator body (11) on the outer wall that is close to central point, respectively through bolt fixedly connected with first brush (17) platform (13) and second brush (18) platform (14) on the both sides inner wall of commutator body (11) through bolt fixedly ) The outer wall of one side of the first brush (17) platform (13) is provided with a first brush (17), the outer wall of one side of the second brush (18) platform (14) is provided with a second brush (18), the outer wall of the rotating shaft (2) is fixedly connected with a first ring copper sheet (15) and a second ring copper sheet (16), the positions of the first ring copper sheet (15) and the second ring copper sheet (16) are both positioned in the commutator body (11), one end of the first brush (17) is movably connected to the outer wall of the first ring copper sheet (15), one end of the second brush (18) is movably connected to the outer wall of the second ring copper sheet (16), the outer walls of the first ring copper sheet (15) and the second ring copper sheet (16) are both fixedly connected with conducting wires (23), and one ends of the two conducting wires (23) are respectively and fixedly connected to the left side and the right side of the coil (9), and the outer walls of one sides of the first electric brush (17) platform (13) and the second electric brush (18) platform (14) are fixedly connected with external electric wires (19).
2. The motor commutator according to claim 1, wherein the outer walls of the two sides of the front end cover (3) are fixedly connected with supporting legs (7), the bottom ends of the two supporting legs (7) are respectively fixedly connected with backing plates (1), and the two sides of the outer wall of the top of the two backing plates (1) are respectively connected with screws (8) through threads.
3. The motor commutator of claim 1, wherein a junction box (6) is fixedly connected to the outer wall of one side of the mounting frame (4), and a wire inserting hole is formed in the outer wall of one side of the junction box (6).
4. The motor commutator of claim 3, wherein the outer wall of one side of the mounting frame (4) is fixedly connected with a rear end cap (5), and the outer wall of one side of the rear end cap (5) is provided with radiating holes (12) distributed at equal intervals.
5. A commutator for an electric motor as claimed in claim 4, wherein the main pole (10) is fixedly connected to one side of the inner wall of the frame (4), and the main pole (10) is located between the commutating pole N (21) and the commutating pole S (22).
6. The motor commutator according to claim 1, wherein one end of the rotating shaft (2) is connected with a mounting buckle through a bearing, and the outer wall of the mounting buckle is fixedly connected with radiating fans (20) which are distributed at equal intervals.
7. A motor commutator according to claim 4 in which a dust cover (25) is fixedly attached to the outer wall of one side of the rear end cap (5).
8. A commutator for an electric motor according to claim 7, wherein the dust cover (25) has air holes (24) formed on an outer wall of one side thereof and arranged at equal intervals.
CN202011168148.8A 2020-10-28 2020-10-28 Motor commutator Withdrawn CN112398289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011168148.8A CN112398289A (en) 2020-10-28 2020-10-28 Motor commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011168148.8A CN112398289A (en) 2020-10-28 2020-10-28 Motor commutator

Publications (1)

Publication Number Publication Date
CN112398289A true CN112398289A (en) 2021-02-23

Family

ID=74597721

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011168148.8A Withdrawn CN112398289A (en) 2020-10-28 2020-10-28 Motor commutator

Country Status (1)

Country Link
CN (1) CN112398289A (en)

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Application publication date: 20210223