Alternating current series excited motor

Abstract

The utility model relates to the technical field of motors, in particular to an alternating-current series excited motor, which comprises a support and a carbon brush assembly, and is characterized in that the support is provided with a stator mounting seat and a stator mounted on the stator mounting seat; the carbon brush assembly is installed on the top of the stator. The stator is also provided with at least two insulating seats, and the two insulating seats are located at the two sides of the carbon brush assembly. The carbon brush assembly is oppositely provided with two carbon brush mounting holes. A mounting seat is arranged on one side of the carbon brush mounting hole; the insulation seat is provided with a wiring terminal groove and a connecting terminal groove, the wiring terminal groove is adjacent to the installation seat, the connecting terminal groove is located under the carbon brush installation hole, and wiring terminals are installed in the wiring terminal groove and the connecting terminal groove. The stator is provided with the insulating seat, the insulating seat is provided with the wiring terminal, and the stator winding and the rotor winding are connected through the wiring terminal, so that the number of connecting wires in the motor is reduced. And the motor is connected in a clamping mode and a contact mode, so that the assembly is simpler, and the production cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more particularly to an AC series motor. Background Technology

[0002] A single-phase AC series motor is a common type of motor, consisting of stator windings and rotor windings. The rotor windings are equipped with a commutator, and the stator and rotor windings are connected in series. It is used in various industries.

[0003] In the prior art, a single-phase series motor mainly includes a base and a housing, and the housing contains a stator, rotor, brush assembly, etc. Existing single-phase series motors are generally installed using a base, and the wiring is led out from the junction box.

[0004] However, the above structure has the following problems: (1) The wiring is led out from the junction box, which increases the number of wires in the casing. At the same time, the junction box is needed to connect the wires and the stator windings, which increases the production cost of the motor. During assembly, the wiring between the stator windings and the junction box is extremely inconvenient and unsafe. (2) A fan is installed in the base. The function of the fan is to exhaust the heat generated by the motor outside the motor. However, the air generated by the fan cannot enter the motor to cool the rotor and stator, thus affecting the continuous working capacity of the motor. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an AC series-wound motor. An insulating base is provided on the rotor, with terminal slots and connection terminal slots on the insulating base. Terminals are installed in both the terminal slots and connection terminal slots. The starting end of the stator winding is snapped onto the terminal, and the terminal is directly coupled to the carbon brushes. This reduces the number of internal wiring wires in the motor. The snap-fit ​​and contact connection method is simpler and lowers production costs than traditional welding or manual wiring methods.

[0006] Another objective of this invention is to provide an AC series motor with ventilation holes and ventilation slots on the bracket. When the motor is working, the air generated by the fan enters the motor through the ventilation holes and ventilation slots, which effectively cools the motor and extends the motor's continuous working time.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an AC series-wound motor, characterized in that: it includes a bracket and a carbon brush assembly; the bracket is provided with a stator mounting base and a stator mounted on the stator mounting base; the carbon brush assembly is mounted on the top of the stator; the stator is also provided with at least two insulating seats, the two insulating seats being located on both sides of the carbon brush assembly; the carbon brush assembly has two carbon brush mounting holes opposite each other; a mounting base is provided on one side of each carbon brush mounting hole; a carbon brush is installed in the carbon brush mounting hole; the insulating base is provided with a terminal block groove and a connecting terminal groove, the terminal block groove is adjacent to the mounting base, the connecting terminal groove is located directly below the carbon brush mounting hole, and a terminal block is installed in both the terminal block groove and the connecting terminal groove, the terminal block being coupled to the carbon brush.

[0008] The above solution involves installing an insulating base on the rotor, with terminal slots and connection terminal slots on the insulating base. Terminals are installed in both the terminal slots and connection terminal slots. The starting end of the stator winding is snapped onto the terminal, and the terminal is directly coupled to the carbon brush. This reduces the number of internal wiring wires in the motor. The snap-fit ​​and contact connection method is simpler and has lower production costs than traditional welding or manual wiring methods.

[0009] Preferably, the terminal block includes a rectangular clamping part and an arc-shaped fixing part. The arc-shaped fixing part is fixedly connected to the rectangular clamping part. The rectangular clamping part is provided with a wire-holding groove and a V-shaped wire groove at the bottom. The wire-holding groove and the V-shaped wire groove are connected through each other. The rectangular clamping part is also provided with a wire-passing cavity.

[0010] Preferably, the stator mounting base is provided with threaded holes, the stator is provided with mounting holes, and the carbon brush assembly and the stator are mounted on the bracket by screws.

[0011] Preferably, the stator contains a rotor; the rotor has a rotating shaft, one end of which is rotatably connected to the bracket, and the other end of which is rotatably connected to the carbon brush assembly; the rotating shaft also has a converter, which is adjacent to the carbon brush assembly; a carbon brush is installed in the carbon brush mounting hole, and the carbon brush is coupled to the converter.

[0012] Preferably, the bracket has a plurality of ventilation holes evenly distributed on its outer circumference, and the bracket has a number of ventilation grooves evenly distributed in a spiral pattern inside the bracket, the ventilation grooves being connected to the ventilation holes.

[0013] Preferably, a fan cover and a stator protective cover are snapped onto both sides of the bracket, with the stator protective cover adjacent to the stator; a fan is installed inside the fan cover, and the fan is fixedly connected to the rotating shaft.

[0014] By adopting the above solution, ventilation holes and ventilation slots are set on the bracket, so that when the motor is working, the air generated by the fan can enter the motor through the ventilation holes and ventilation slots, so that the motor is effectively cooled and the motor can work continuously for a longer time.

[0015] The beneficial effects of this utility model are as follows: 1. An insulating base is provided on the stator, and terminals are installed on the insulating base. The stator winding and rotor winding are connected through the terminals, thereby reducing the number of connecting wires inside the motor. The assembly of the motor is simpler and the production cost is lower due to the connection method using snap-fit ​​and contact methods. 2. Ventilation holes and slots are provided on the bracket, allowing the air generated by the fan to enter the motor during operation, effectively cooling the motor's interior and extending its continuous operating time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isolateral side of this utility model.

[0017] Figure 2 This is a schematic diagram of the wiring terminals of this utility model.

[0018] Figure 3 This is a schematic diagram of the support frame of this utility model.

[0019] Figure 4 This is a schematic diagram of the stator of this utility model.

[0020] Reference numerals: 1. Bracket; 2. Carbon brush assembly; 3. Stator mounting base; 4. Stator; 5. Rotor; 6. Threaded hole; 7. Turbine fan; 8. Mounting base; 9. Screw; 10. Shaft; 11. Converter; 12. Carbon brush mounting hole; 13. Carbon brush; 14. Insulating base; 15. Terminal slot; 16. Connecting terminal slot; 17. Terminal; 18. Rectangular clamping part; 19. Arc-shaped fixing part; 20. Wire clamping slot; 21. V-shaped wire slot; 22. Wire passage cavity; 23. Vent hole; 24. Vent groove; 25. Fan cover; 26. Stator protective cover; 27. Bearing. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-4As shown, this utility model provides an AC series motor, including a bracket 1 and a carbon brush assembly 2. The bracket 1 is provided with a stator mounting base 3 and a stator 4 mounted on the stator mounting base 3. A rotor 5 is provided inside the stator 4. The carbon brush assembly 2 is mounted on the top of the stator 4. The stator mounting base 3 is provided with a threaded hole 6. The stator 4 is provided with a mounting hole. The carbon brush assembly 2 is provided with a mounting seat 8. A screw 9 passes through the mounting seat 8 and the mounting hole on the stator and cooperates with the threaded hole 6 on the front bracket to mount the carbon brush assembly 2 and the stator 4 on the bracket 1.

[0023] The rotor 5 is provided with a rotating shaft 10. One end of the rotating shaft 10 is connected to the bracket 1 via a bearing 27, and the other end of the rotating shaft 10 is mounted on a carbon brush assembly 2 via the bearing 27. The rotating shaft 10 is also provided with a converter 11, which is adjacent to the carbon brush assembly 2. The carbon brush assembly 2 is also provided with a carbon brush mounting hole 12, in which a carbon brush 13 is installed. The carbon brush 13 is coupled to the converter 11.

[0024] The stator 4 includes an insulating base 14 and stator windings. At least two sets of stator windings are wound inside the stator. Two insulating bases 14 are installed on the top of the stator 4 and located on both sides of the carbon brush assembly 2. The insulating base 14 is provided with a terminal slot 15 and a connecting terminal slot 16. The terminal slot 15 is adjacent to the mounting base 8, and the connecting terminal slot 16 is located directly below the carbon brush mounting hole 12. Terminals 17 are installed in both the terminal slot 15 and the connecting terminal slot 16, wherein the terminals in the connecting terminal slot are coupled to the carbon brush.

[0025] The terminal block 17 includes a rectangular clamping part 18 and an arc-shaped fixing part 19, with the arc-shaped fixing part 19 fixedly connected to the rectangular clamping part 18. The rectangular clamping part 18 is provided with a wire-holding groove 20, and the bottom of the rectangular clamping part 18 is provided with a V-shaped wire groove 21, which are connected through each other. The rectangular clamping part 18 is also provided with a wire-passing cavity 22 through which the stator winding passes.

[0026] The bracket 1 has several vent holes 23 evenly distributed on its outer circumference. The bracket 1 also has a spiral distribution of the same number of vent grooves 24 as the vent holes 23, which are connected to the vent holes 23. A fan cover 25 and a stator protection cover 26 are snapped onto both sides of the bracket 1, with the stator protection cover 26 adjacent to the stator 4. A turbine fan 7 is housed inside the fan cover 25 and is mounted on the rotating shaft 10.

[0027] In use, this invention features an insulating base on the rotor, with terminal slots and connection slots on the insulating base. Terminals are installed in both the terminal slots and connection slots, and the starting end of the stator winding is snapped onto the terminal, which is then directly coupled to the carbon brush. This reduces the number of internal wiring wires in the motor. The snap-fit ​​and contact connection method is simpler and lowers production costs than traditional welding or manual wiring methods. Furthermore, ventilation holes and slots are provided on the bracket, allowing air generated by the fan to enter the motor during operation, effectively cooling the internal components and extending the motor's continuous operating time.

[0028] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An AC series motor, characterized in that: The device includes a bracket and a carbon brush assembly. The bracket has a stator mounting base and a stator mounted on the stator mounting base. The carbon brush assembly is mounted on the top of the stator. The stator also has at least two insulating seats located on both sides of the carbon brush assembly. The carbon brush assembly has two carbon brush mounting holes opposite each other. A mounting base is provided on one side of each carbon brush mounting hole. A carbon brush is installed in the carbon brush mounting hole. The insulating seat has a terminal block slot and a connection terminal slot. The terminal block slot is adjacent to the mounting base, and the connection terminal slot is located directly below the carbon brush mounting hole. Terminal blocks are installed in both the terminal block slot and the connection terminal slot, and the terminal blocks are coupled to the carbon brushes.

2. The AC series motor according to claim 1, characterized in that: The terminal block includes a rectangular clamping part and an arc-shaped fixing part. The arc-shaped fixing part is fixedly connected to the rectangular clamping part. The rectangular clamping part is provided with a wire-holding groove and a V-shaped wire groove at the bottom. The wire-holding groove and the V-shaped wire groove are connected through each other. The rectangular clamping part is also provided with a wire-passing cavity.

3. The AC series motor according to claim 1, characterized in that: The stator mounting base is provided with threaded holes, and the stator is provided with mounting holes. The carbon brush assembly and the stator are mounted on the bracket by screws.

4. The AC series motor according to claim 1, characterized in that: The stator contains a rotor; the rotor has a rotating shaft, one end of which is rotatably connected to the bracket, and the other end of which is rotatably connected to the carbon brush assembly; the rotating shaft also has a converter, which is adjacent to the carbon brush assembly; a carbon brush is installed in the carbon brush mounting hole, and the converter is coupled to the carbon brush.

5. The AC series motor according to claim 4, characterized in that: The bracket has a number of ventilation holes evenly distributed on its outer circumference, and the bracket has a number of ventilation grooves evenly distributed in a spiral pattern inside its interior, the ventilation grooves being connected to the ventilation holes.

6. The AC series motor according to claim 5, characterized in that: The bracket has a fan cover and a stator protective cover snapped onto both sides, with the stator protective cover adjacent to the stator; a fan is installed inside the fan cover, and the fan is fixedly connected to the rotating shaft.

Images