CN217769625U - Flat four-pole series motor - Google Patents

Abstract

The utility model discloses a flat quadrupole series motor in the technical field of motors, which comprises a bracket, wherein the bracket comprises a front bracket and a rear bracket; the motor comprises a front support, a rear support, a stator core, four branches and four carbon brushes, wherein the front support is connected with the rear support through rivets, the stator is provided with four magnetic poles, the size of a chip is large and the height of the chip is short, the number of rotor slots is Z =16/20, the rotor slots are designed and placed in the rotor slots in a four-magnetic pole mode, a short distance winding = Z is larger than or equal to 4, the four branches are designed, the four branches are provided with 4 carbon brushes, two opposite corners of the two carbon brushes form a group, after the series motor is assembled, the four carbon brushes respectively extend out under the elastic force action of springs of the electric brush assembly, the heads of the four carbon brushes are respectively contacted with the surface of a commutator, the motor has the advantages of large output power, large output torque, small rotor current density, the stator and the rotor tend to be balanced in heating, the height is reduced by changing into a four-pole motor, a flat structure is similar, and the occupied space of the motor is reduced.

Description

Flat four-pole series motor

Technical Field

The utility model relates to the technical field of electric machines, specifically be flat quadrupole series excited machine.

Background

2 in the existing series excited machine series, the stator lamination is only provided with a pair of magnetic poles, and is provided with 1 pair of electric brushes (2 electric brushes), and the rotor winding is also arranged in each rotor slot according to a two-pole design, and only two branches are provided. The current density of the motor is generally higher than that of a stator, the temperature rise is also higher than that of the stator, the motor on the market is longer in size and cannot meet the requirements of high power and small size, and therefore a flat quadrupole series motor is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flat quadrupole series excited machine to solve the problem that proposes among the above-mentioned background art.

4 for realizing above-mentioned purpose, the utility model provides a following technical scheme: the flat quadrupole series motor comprises a bracket, wherein the bracket comprises a front bracket and a rear bracket;

5, the front support and the rear support are connected through rivets, and a stator core is connected between the front support and the rear support;

6, one side of the front support facing the rear support is connected with a first wire frame, one side surface of the rear support facing the first wire frame is connected with a second wire frame, a carbon brush sleeve and a carbon brush plate are connected between the second wire frame and the rear support, the carbon brush plate is connected to the rear support, and the carbon brush sleeves are arranged in two groups and are installed on the carbon brush plate;

7, a stator core is connected to the first wire frame, a shaft is inserted into the center of the stator core, a first end plate and a second end plate are sleeved on the surface of the shaft, a rotor core is sleeved on the surface of the shaft between the first end plate and the second end plate, and the first end plate, the rotor core and the second end plate are distributed in a concentric circle;

8 a commutator is connected between the second wire frame and the second end plate;

and 9, a bearing is arranged on the bracket.

10 preferably, the stator core is fixedly connected to the rivet.

Preferably, the outer diameter of the stator core is 70-90mm, the outer diameter of the rotor core is 35-45mm, and the stator core and the rotor core have a height difference of 0.5-1.0 mm.

12 preferably, the stator core profile is a combination of both square and circular geometries.

Preferably, the carbon brush sleeve is directly connected with the bracket after being fixed on the carbon brush plate and keeps a safe distance.

Preferably, the stator core has four stator teeth projecting inwardly around the array, the stator teeth being offset ninety degrees from adjacent brushes, each stator tooth having a stator core coil (0051) wound thereon, the stator core coils (0051) forming an excitation winding.

15 preferably, the surface of the rear support is connected with a fan-type cooling device, the fan-type cooling device comprises fan blades connected to the rear support, and the fan blades are reinforced and fixed by clamping rings.

16 preferably, the fan-type cooling device has an outer diameter of 45 to 70mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. 18 this scheme provides a new quadrupole series excited machine, including the rotor subassembly, the brush subassembly, it is preceding, the after-poppet, the stator sets up to four magnetic poles, the chip size major height is short, rotor groove quantity is Z =16/20, lay in each rotor inslot according to the design of four magnetic pole mode, short distance winding = Z is more than or equal to 4, design four branches, be equipped with 4 carbon brushes, two brush diagonal angles are a set of, after the series excited machine is assembled, under the spring action of each spring of brush subassembly, four carbon brushes stretch out respectively, its head respectively with commutator surface contact, it is big to have the big output torque of output, rotor current density is little, decide, the rotor generates heat and tends to balance, and through changing into four-pole motor, the height is reduced, similar a flat structure, the occupation space of motor has been reduced.

Drawings

FIG. 19 is an exploded view of the present invention;

fig. 20 is a schematic side view of the stator core structure of the present invention;

fig. 21 and 3 are schematic views illustrating the principle of the present invention.

In FIG. 22: 001. a bearing; 002. a front bracket; 003. riveting; 004. a first wire frame; 005. a stator core; 0051. a stator core coil; 006. a first end plate; 007. a rotor core; 008. a second end plate; 009. a commutator; 010. a second wire frame; 011. a carbon brush sleeve; 012. a carbon brush plate; 013. a rear bracket; 014. a fan blade; 015. a snap ring.

Detailed Description

23 example one

Referring to fig. 1-3, the present invention provides a technical solution:

25 flat quadrupole series-excited machine, four corners of a front bracket 002 in the bracket are connected with a rear bracket 013 through four groups of rivets 003, the front bracket 002 and the rear bracket 013 are both connected with bearings 001, and the bearings 001 on the front bracket 002 and the rear bracket 013 are distributed in concentric circles;

26 a first wire frame 004 is connected to the surface of one side, facing the first wire frame 004, of the front support 002, a second wire frame 010 is connected to the surface of one side, facing the first wire frame 004, of the rear support 013, a carbon brush sleeve 011 and a carbon brush plate 012 are connected between the second wire frame 010 and the rear support 013, the carbon brush plate 012 is connected to the rear support 013, the carbon brush sleeves 011 are arranged into two groups to be installed on the carbon brush plates 012, the carbon brush sleeves 011 are directly connected with the supports after being fixed on the carbon brush plates 012, and absolute safety distances are guaranteed;

a stator core 005 is connected to the first 27-wire rack 004, and the stator core 005 is also fixedly connected through a rivet 003;

28 a shaft is inserted into the center of the stator core 005, the first end plate 006 and the second end plate 008 are sleeved on the surface of the shaft, the rotor core 007 is sleeved on the surface of the shaft between the first end plate 006 and the second end plate 008, and the first end plate 006, the rotor core 007 and the second end plate 008 are distributed in a concentric circle;

a commutator 009 is connected between the 29 wire frame II 010 and the end plate II 008;

30 the surface of back support 013 is connected with fan type cooling device, and fan type cooling device includes the fan blade 014 of being connected on back support 013, uses snap ring 015 enhancement fixed on the fan blade 014, and fan type cooling device's external diameter is 45-70mm.

31 wherein the outer diameter of the stator core 005 is 70-90mm, and the outer diameter of the rotor core 007 is 35-45mm;

32 and the stator core 005 outer shape is formed by a combination of two geometric figures of a square shape and a circular shape;

33 the stator core 005 and the rotor core 007 have a height difference of 0.5-1.0 mm.

Stator core 005 has four stator teeth projecting inwardly around the array, the stator teeth being ninety degrees offset from adjacent brushes, and a stator core wire package 0051 wound around each tooth, the stator core wire packages 0051 forming excitation windings, as shown in figure 2 of the drawings.

Claims (8)

1. Flat quadrupole series excited machine, including the support, its characterized in that: the bracket comprises a front bracket (002) and a rear bracket (013);

the front support (002) and the rear support (013) are connected through rivets (003), and a stator core (005) is connected between the front support (002) and the rear support (013);

one side, facing the rear support (013), of the front support (002) is connected with a first wire frame (004), one side, facing the first wire frame (004), of the rear support (013) is connected with a second wire frame (010), a carbon brush sleeve (011) and a carbon brush plate (012) are connected between the second wire frame (010) and the rear support (013), the carbon brush plate (012) is connected to the rear support (013), and two groups of carbon brush sleeves (011) are arranged and installed on the carbon brush plate (012);

a stator core (005) is connected to the first coil holder (004), a shaft is inserted into the center of the stator core (005), an end plate I (006) and an end plate II (008) are sleeved on the surface of the shaft, a rotor core (007) is sleeved on the surface of the shaft between the end plate I (006) and the end plate II (008), and the end plate I (006), the rotor core (007) and the end plate II (008) are distributed in a concentric circle mode;

a commutator (009) is connected between the second coil holder (010) and the second end plate (008);

and a bearing (001) is arranged on the bracket.

2. The flat quadrupole series-excited machine of claim 1, wherein: and the stator core (005) is fixedly connected to the rivet (003).

3. The flat quadrupole series-excited machine of claim 1, wherein: the outer diameter of the stator core (005) is 70-90mm, the outer diameter of the rotor core (007) is 35-45mm, and the stator core (005) and the rotor core (007) have a height difference of 0.5-1.0 mm.

4. The flat quadrupole series-excited machine of claim 1, wherein: the shape of the stator core (005) is formed by combining two geometric figures of a square shape and a circular shape.

5. The flat quadrupole series-excited machine of claim 1, wherein: the carbon brush sleeve (011) is directly connected with the bracket and keeps a safe distance after being fixed on the carbon brush plate (012).

6. The flat quadrupole series-excited machine of claim 1, wherein: the stator core (005) has four stator teeth projecting inwardly around the array, the stator teeth being offset ninety degrees from adjacent brushes, a stator core coil (0051) being wound around each stator tooth, the stator core coils (0051) forming an excitation winding.

7. The flat quadrupole series-excited machine of claim 1, wherein: the surface of after-poppet (013) is connected with fan type cooling device, fan type cooling device is including connecting fan blade (014) on after-poppet (013), use snap ring (015) to strengthen fixedly on fan blade (014).

8. The flat quadrupole series-excited machine of claim 7, wherein: the outer diameter of the fan type cooling device is 45-70mm.

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