Motor commutator

Abstract

The utility model relates to a motor commutator, comprising a commutation seat, a commutator segment and a lining, the commutator segment comprises a plurality of fixing groups which can be welded and fixed with a circuit board and connecting pins which are electrically connected with a motor, the fixing groups are symmetrically arranged around the commutation seat, and avoiding grooves which can avoid components of the circuit board are formed among the fixing groups. The fixing group comprises more than two fixing pins and connecting pins, each connecting pin is provided with a first connecting end fixedly connected with the reversing seat, each fixing pin is provided with a second connecting end fixedly connected with the reversing seat, each first connecting end is bent downwards to be provided with a third connecting end connected with a motor enameled wire, and each fixing pin is bent downwards to be provided with a welding end welded with a circuit board. According to the motor commutator, the circuit board and the commutator are welded and integrated through the fixing pins and the circuit board, the installation steps of the commutator and the circuit board are greatly simplified, installation is faster, the design of the avoiding grooves can avoid components on the circuit board, and installation of the commutator and the circuit board is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor commutator. Background Art

[0002] The motor commutator is an important component in DC motors and AC commutator motors. In DC motors, the commutator works in conjunction with brushes to continuously change the direction of current in the motor windings, allowing the motor's electromagnetic field to rotate continuously. The commutator periodically changes the direction of current in the armature winding to ensure that the motor's electromagnetic torque is always in the same direction, allowing the motor to operate continuously and smoothly. In series-excited DC motors, the commutator can adjust the motor's speed by changing the current in the armature or field windings.

[0003] Publication number: CN202513424U discloses a motor commutator, which belongs to the field of mechanical technology and solves the problems of cumbersome manual operation and low work efficiency of existing motor commutators. The motor commutator includes an insulating sleeve and a plurality of commutator segments fixed on the cylindrical surface of the insulating sleeve. The commutator segments are independent of each other and not connected. The connection ends of the commutator segments are provided with hook-shaped connection ends, which have the advantages of realizing automatic operation connection and high work efficiency. However, the motor commutator and the circuit board are electrically connected to the connection end through a wire, and the connection method is unstable. When the motor is running, the wire is prone to breakage, causing safety problems of the motor. At the same time, when installing the commutator and the motor circuit board, they need to be installed through other means. The installation is complicated and very inconvenient. Therefore, this technology still has a certain room for modification. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a motor commutator in view of the above-mentioned deficiencies in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a motor commutator, comprising a commutator seat, a commutator segment, and a bushing; the commutator segment is fixedly arranged around the commutator seat, and the bushing is wrapped around the commutator seat, characterized in that: the commutator segment comprises a plurality of fixing groups that can be welded and fixed to a circuit board and connecting feet electrically connected to the motor; the fixing groups are symmetrically arranged around the commutator seat, and avoidance grooves that can avoid circuit board components are formed between the fixing groups; the plurality of connecting feet are symmetrically arranged in the avoidance grooves; the fixing group comprises more than two fixing feet and connecting feet; the connecting foot is provided with a first connecting end fixedly connected to the commutator seat; the fixing foot is provided with a second connecting end fixedly connected to the commutator seat; the first connecting end is bent downward and provided with a third connecting end to the motor enameled wire; the fixing foot is bent downward and provided with a welding end welded to the circuit board.

[0006] By adopting the above technical solution, through the symmetrical arrangement of the fixing group and connecting feet, and the design of welding and fixing with the circuit board, the precise positioning of the commutator inside the motor can be ensured, avoiding deviations during the assembly process. High-precision assembly helps to reduce vibration and noise during motor operation and improve the overall operating stability of the equipment. The integrated setting of the circuit board and the commutator by welding the fixing feet to the circuit board greatly simplifies the installation steps of the commutator and the circuit board, making the installation faster. The design of the avoidance groove can avoid the components on the circuit board, making the installation of the commutator and the circuit board more convenient. At the same time, it helps to increase the contact area between the commutator and the air inside the motor, promotes heat dissipation, and improves the overall operating stability of the equipment.

[0007] The above-mentioned motor commutator can be further configured as follows: the bushing is fixedly connected to the commutation seat by means of glue injection, the bushing includes an upper bushing and a lower bushing, the upper bushing is fixedly arranged on the outer periphery of the commutation seat, the center of the commutation seat is provided with an installation cavity for installing the lower bushing, the lower bushing is fixedly arranged in the installation cavity, the lower bushing is provided with a fixing groove, and the commutation seat is provided with a clamping block fixedly connected with the fixing groove at the lower bushing.

[0008] The above-mentioned technical solution, in which the bushing is fixed by glue injection, ensures a precise fit between the commutator and the bushing, while also helping to enhance electrical insulation between the various parts of the commutator, preventing current leakage or short circuits. The coordinated connection between the upper and lower bushings, as well as the clamping block and the fixing slot, significantly enhances the overall structural stability of the commutator, avoiding unnecessary movement or deviation due to assembly clearance.

[0009] The above-mentioned motor commutator can be further configured as follows: the commutation seat is provided with a first fixed ring along the outer circumference, the first connecting end and the second connecting end are fixedly installed on the first fixed ring, the upper bushing is located on the surface of the first fixed ring and is fixedly provided with a second fixed ring, and the second fixed ring is covered on the first fixed ring and the connecting foot, the first connecting end and the second connecting end surface of the fixed foot.

[0010] By adopting the above technical solution, the provision of the first fixing ring and the second fixing ring helps to enhance the electrical insulation between the various parts of the commutator and prevent the occurrence of current leakage or short circuit. The fixing ring is wrapped around the surfaces of the connecting foot and the first connecting end and the second connecting end of the fixing foot, which can ensure the precise position of the connecting foot and the fixing foot on the bushing, avoid unnecessary movement or deviation caused by assembly gap, and can effectively fix the connecting foot and the fixing foot on the bushing, thereby enhancing the structural stability of the entire motor commutator.

[0011] The above-mentioned motor commutator can be further configured as follows: the upper sleeve is provided with a mounting ring for the power supply sleeve on the side facing the welding end, the mounting ring is arranged at the bottom of the second fixed ring, and a first positioning groove for positioning and installation is formed between the mounting ring and the commutation seat, and the commutation seat is surrounded by a second positioning groove, and the first positioning groove and the second positioning groove are formed in a downward step shape.

[0012] By adopting the above technical solution, by setting the first positioning groove and the second positioning groove, the commutator can be accurately positioned inside the motor, avoiding deviations during the assembly process. High-precision assembly helps to reduce vibration and noise during motor operation and improve the operating stability of the overall equipment. The stepped positioning groove design between the mounting ring and the commutator seat enhances the connection strength between the commutator and other components of the motor.

[0013] The above-mentioned motor commutator can be further configured as follows: the other side of the upper bushing away from the mounting ring is provided with a mounting portion connected to the motor, and the mounting portion and the upper bushing and the lower bushing are all provided with mounting holes for mounting the central axis of the external motor, the mounting hole is located at the opening of the upper bushing and is obliquely arranged, and the mounting hole is located at the bottom of the lower bushing and is provided with an abutment groove that abuts against the central axis component of the external motor.

[0014] By adopting the above technical solution, the installation of the commutator and the motor is facilitated by connecting the mounting portion of the upper bushing on the other side of the mounting ring to the motor. A mounting portion connected to the motor is provided on the other side away from the mounting ring. The obliquely arranged mounting holes make the insertion of the motor center shaft more convenient, simplifying the installation process, and at the same time promoting air flow, further improving the heat dissipation efficiency, and enabling the motor to operate stably for a long time.

[0015] The beneficial effects of the present invention are as follows: the motor commutator integrates the circuit board and the commutator by welding the fixing feet to the circuit board, which greatly simplifies the installation steps of the commutator and the circuit board and makes the installation faster. The design of the avoidance groove can avoid the components on the circuit board, making the installation of the commutator and the circuit board more convenient. The symmetrically arranged fixing groups and connecting feet, as well as the design of welding and fixing with the circuit board, can ensure the precise positioning of the commutator inside the motor and avoid deviation during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural cross-sectional view of the utility model;

[0018] Figure 3 This is a structural diagram of the reversing seat of the utility model;

[0019] Label notes: 1-reversing seat, 2-reversing piece, 3-bushing, 4-avoidance groove, 5-first connecting end, 6-second connecting end, 7-third connecting end, 8-welding end, 9-fixing groove, 10-clamping block, 11-first fixing ring, 12-second fixing ring, 13-mounting ring, 14-first positioning groove, 15-second positioning groove, 16-mounting part, 17-mounting hole, 18-abutting groove, 101-mounting cavity, 201-fixing group, 201a-connecting foot, 201b-fixing foot, 301-upper bushing, 302-lower bushing. DETAILED DESCRIPTION

[0020] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0021] like Figure 1-3The utility model provides the following technical solutions: a motor commutator, including a commutator seat 1, a commutator segment 2, and a bushing 3. The commutator segment 2 is fixedly arranged around the commutator seat 1, and the bushing 3 is wrapped around the commutator seat 1. The commutator segment 2 includes a plurality of fixing groups 201 that can be fixed by welding to a circuit board and a connecting foot 201a that is electrically connected to the motor. The fixing groups 201 are symmetrically arranged around the commutator seat 1, and a avoidance groove 4 that can avoid circuit board components is formed between the fixing groups 201. A plurality of connecting feet 201a are symmetrically arranged in the avoidance groove 4. The fixing group 201 includes two fixing groups 201. The fixing foot 201b and the connecting foot 201a on the motor are provided. The connecting foot 201a is provided with a first connecting end 5 fixedly connected to the commutation seat 1, and the fixing foot 201b is provided with a second connecting end 6 fixedly connected to the commutation seat 1. The first connecting end 5 is bent downward and provided with a third connecting end 7 for the motor enameled wire. The fixing foot 201b is bent downward and provided with a welding end 8 welded to the circuit board. The symmetrical arrangement of the fixing group 201 and the connecting foot 201a, as well as the design of welding and fixing with the circuit board, can ensure the precise positioning of the commutator inside the motor, avoid deviation during the assembly process, and achieve high Precision assembly helps to reduce vibration and noise during motor operation and improve the running stability of the whole equipment. The circuit board and the commutator are welded to the circuit board through the fixed foot 201b, which greatly simplifies the installation steps of the commutator and the circuit board and makes the installation faster. The design of the avoidance groove 4 can avoid the components on the circuit board, making the installation of the commutator and the circuit board more convenient. At the same time, it helps to increase the contact area between the commutator and the air inside the motor, promote heat dissipation, and improve the running stability of the whole equipment. The bushing 3 is fixedly connected to the commutator seat 1 by glue injection. The bushing 3 It includes an upper bushing 301 and a lower bushing 302. The upper bushing 301 is fixedly arranged on the outer periphery of the reversing seat 1. The center of the reversing seat 1 is provided with an installation cavity 101 for installing the lower bushing 302. The lower bushing 302 is fixedly arranged in the installation cavity 101. The lower bushing 302 is provided with a fixing groove 9. The reversing seat is provided with a clamping block 10 fixedly connected to the fixing groove 9 at the lower bushing 302. The bushing 3 fixed by glue injection can ensure the precise fit between the reversing seat 1 and the bushing 3, and at the same time help to enhance the electrical insulation between the various parts of the commutator and prevent current leakage or short circuit.To avoid unnecessary movement or deviation caused by assembly gap, the upper bushing 301 and the lower bushing 302, as well as the matching connection of the clamping block 10 and the fixing groove 9, can greatly enhance the overall structural stability of the reversing seat 1. The reversing seat 1 is provided with a first fixing ring 11 around the outer periphery, and the first connecting end 5 and the second connecting end 6 are fixedly installed on the first fixing ring 11. The upper bushing 301 is located on the surface of the first fixing ring 11 and is fixedly provided with a second fixing ring 12. The second fixing ring 12 is covered on the first fixing ring 11 and the first connecting end 5 and the second connecting end 6 of the connecting foot 201a and the fixing foot 201b. The surface of the end 6, the setting of the first fixing ring 11 and the second fixing ring 12 helps to enhance the electrical insulation between the various parts of the commutator and prevent the occurrence of current leakage or short circuit. The fixing ring is wrapped around the first connecting end 5 and the second connecting end 6 of the connecting foot 201a and the fixing foot 201b, which can ensure the precise position of the connecting foot 201a and the fixing foot 201b on the bushing 3, avoid unnecessary movement or deviation due to assembly gap, and can effectively fix the connecting foot 201a and the fixing foot 201b on the bushing 3, thereby enhancing the structural stability of the entire motor commutator.

[0022] like Figure 1-3 The motor commutator shown is provided with a mounting ring 13 for the power supply sleeve on the side of the upper bushing 301 facing the welding end 8, and the mounting ring 13 is provided at the bottom of the second fixing ring 12. A first positioning groove 14 for positioning and installation is formed between the mounting ring 13 and the commutating seat 1. The commutating seat 1 is surrounded by a second positioning groove 15. The first positioning groove 14 and the second positioning groove are in a downward stepped shape. By providing the first positioning groove 14 and the second positioning groove 15, the commutator can be accurately positioned inside the motor to avoid deviation during assembly. High-precision assembly helps to reduce vibration and noise during motor operation and improve the overall operating stability of the equipment. The stepped positioning groove design between the mounting ring 13 and the commutating seat 1 enhances the connection strength between the commutator and other components of the motor. The other side of 301 away from the mounting ring 13 is provided with a mounting portion 16 connected to the motor, and the mounting portion 16 and the upper bushing 301 and the lower bushing 302 are all provided with mounting holes 17 for installing the external motor central axis. The mounting hole 17 is located at the opening of the upper bushing 301 and is obliquely set. The mounting hole 17 is located at the bottom of the lower bushing 302 and is provided with an abutment groove 18 abutting the external motor central axis component. The installation of the commutator and the motor is facilitated by connecting the mounting portion 16 on the other side of the upper bushing 301 away from the mounting ring 13 with the motor. The other side away from the mounting ring 13 is provided with a mounting portion 16 connected to the motor. The obliquely set mounting hole 17 makes the insertion of the motor central axis more convenient, simplifies the installation process, and at the same time promotes air flow, further improves the heat dissipation efficiency, and enables the motor to operate stably for a long time.

[0023] The beneficial effects of the present invention are as follows: the motor commutator integrates the circuit board and the commutator by welding the fixing feet 201b to the circuit board, which greatly simplifies the installation steps of the commutator and the circuit board and makes the installation faster. The design of the avoidance groove 4 can avoid the components on the circuit board, making the installation of the commutator and the circuit board more convenient. The symmetrically arranged fixing group 201 and connecting feet 201a, as well as the design of welding and fixing with the circuit board, can ensure the precise positioning of the commutator inside the motor and avoid deviation during the assembly process.

Claims

1. A motor commutator, comprising a commutator seat, a commutator segment, and a bushing, wherein the commutator segment is fixedly arranged around the commutator seat, and the bushing is wrapped around the commutator seat, characterized in that: The commutator segment includes several fixing groups that can be welded and fixed to the circuit board and connecting feet electrically connected to the motor. The fixing groups are symmetrically arranged around the commutator seat, and avoidance grooves that can avoid circuit board components are formed between the fixing groups. The several connecting feet are symmetrically arranged in the avoidance grooves. The fixing group includes more than two fixing feet and connecting feet. The connecting foot is provided with a first connecting end fixedly connected to the commutator seat, and the fixing foot is provided with a second connecting end fixedly connected to the commutator seat. The first connecting end is bent downward and provided with a third connecting end connected to the motor enameled wire. The fixing foot is bent downward and provided with a welding end welded to the circuit board.

2. The motor commutator according to claim 1, characterized in that: The bushing is fixedly connected to the reversing seat by means of glue injection. The bushing includes an upper bushing and a lower bushing. The upper bushing is fixedly arranged on the outer periphery of the reversing seat. The center of the reversing seat is provided with an installation cavity for installing the lower bushing. The lower bushing is fixedly arranged in the installation cavity. The lower bushing is provided with a fixing groove. The reversing seat is provided with a clamping block fixedly connected with the fixing groove at the lower bushing.

3. The motor commutator according to claim 2, characterized in that: The reversing seat is provided with a first fixed ring along the outer circumference, the first connecting end and the second connecting end are fixedly installed on the first fixed ring, the upper bushing is located on the surface of the first fixed ring and is fixedly provided with a second fixed ring, the second fixed ring is covered on the first fixed ring and the connecting foot, the first connecting end and the second connecting end surface of the fixed foot.

4. The motor commutator according to claim 3, characterized in that: The upper bushing is provided with a mounting ring for the power supply machine on the side facing the welding end, and the mounting ring is arranged at the bottom of the second fixing ring. A first positioning groove for positioning and installation is formed between the mounting ring and the reversing seat, and a second positioning groove is arranged around the reversing seat. The first positioning groove and the second positioning groove are positioned in a downward step shape.

5. A motor commutator according to any one of claims 2 to 4, characterized in that: The other side of the upper bushing away from the mounting ring is provided with a mounting portion connected to the motor. The mounting portion and the upper bushing and the lower bushing are all provided with mounting holes for mounting the central axis of the external motor. The mounting hole is located at the opening of the upper bushing and is obliquely arranged. The mounting hole is located at the bottom of the lower bushing and is provided with an abutment groove that abuts against the central axis component of the external motor.

Images