CN210041499U

CN210041499U - Electric machine

Info

Publication number: CN210041499U
Application number: CN201920758622.9U
Authority: CN
Inventors: 梁三增; 陈金强
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-07
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses a motor, including front end housing, rear end housing, stator module, rotor subassembly and pivot, front end housing and rear end housing are installed together and are formed and hold the chamber, and stator module nestification is placed in and is held the chamber the inside in the rotor subassembly outside, and the pivot links together with the rotor subassembly, and the pivot supporting is on the bearing of front end housing and rear end housing, its characterized in that: the front end cover and the rear end cover are both aluminum alloy end covers, a plurality of first mounting holes are formed in the front end cover, a plurality of second mounting holes are formed in the rear end cover, the front end cover and the rear end cover are locked through cooperation of the screws screwed into the second mounting holes and the first mounting holes after penetrating through the accommodating cavity, the structure is simple and firm to mount, a traditional plastic package motor can be replaced, the application range is wide, the rejection rate of product production can be reduced, and the fireproof effect is good.

Description

Electric machine

The technical field is as follows:

the utility model relates to a motor.

Background art:

current plastic envelope motor includes the pivot, the rotor subassembly, plastic envelope stator module and bearing support frame, plastic envelope stator module include stator core, stator winding and the shell of moulding plastics, the pivot is installed on the rotor subassembly, be equipped with first cavity in the middle of the plastic envelope stator module, the rotor subassembly is installed in first cavity, the both ends of first cavity are equipped with the step, bearing support frame installs on the step, bearing support frame sets up the bearing room, the bearing is installed in the bearing room the inside, the both ends of the shell of moulding plastics are overlapped respectively and are equipped with the fire prevention cover, tight laminating is in the same place between fire prevention cover and the shell of moulding plastics, the fire prevention cover and the shell of moulding plastics between singly take off easily through closely laminating, though the fire prevention problem has been solved to the plastic envelope motor, but this structure is moulding plastics in-process.

The utility model has the following contents:

the utility model aims at providing a motor, it is high to solve among the prior art in-process disability rate of moulding plastics, and the motor security performance qualification rate is low, leads to the cost of production to be high, singly takes off technical problem such as the easy pine of laminating through closely between the fire prevention cover and the shell of moulding plastics.

The purpose of the utility model is realized by the following technical scheme.

The utility model aims at providing a motor, including front end housing, rear end housing, stator module, rotor subassembly and pivot, front end housing and rear end housing are installed together and are formed and hold the chamber, and stator module nestification is placed in and is held the chamber the inside in the rotor subassembly outside, and the pivot links together with the rotor subassembly, and the pivot supporting is on the bearing of front end housing and rear end housing, its characterized in that: the front end cover and the rear end cover are both aluminum alloy end covers, a plurality of first mounting holes are formed in the front end cover, a plurality of second mounting holes are formed in the rear end cover, and the front end cover and the rear end cover are locked through the cooperation of the screws screwed into the second mounting holes and the first mounting holes after penetrating through the accommodating cavity.

The front end cover comprises a first end plate and a first cylinder axially extending from the edge of the first end plate, a first bearing seat protrudes outwards from the center of the first end plate, a first bearing chamber for mounting a bearing is arranged in the first bearing seat, a first shaft hole is formed in the first bearing seat, a rotating shaft extends out of the first shaft hole, a plurality of first mounting holes are formed in the first end plate, and the first mounting holes are threaded holes.

The rear end cover comprises a second end plate and a second cylinder body axially extending from the edge of the second end plate, a second bearing seat protrudes inwards from the center of the second end plate, a second bearing chamber used for mounting a bearing is arranged in the second bearing seat, a second shaft hole is formed in the second bearing seat, the rotating shaft extends out of the second shaft hole, and a plurality of second mounting holes are formed in the second end plate.

The internal face of first cylinder is equipped with a plurality of first gibs, the internal face of second cylinder is equipped with a plurality of second gibs, stator module includes stator core, plastic insulator and coil winding, stator core splices by two half iron cores and forms annular yoke portion and a plurality of teeth that stretch out from annular yoke portion, forms the rule groove between two adjacent teeth, plastic insulator coils the winding group after living with stator core both ends face, stator core's surface and the wall parcel of rule groove, coil winding is around establishing on stator core's annular yoke portion, be equipped with a plurality of draw-in grooves on plastic insulator's the surface, the draw-in groove exposes stator core's surface and terminal surface part outside, the draw-in groove corresponds the cooperation with first gib and second gib respectively.

First supporting steps are arranged between the first clamping strips and the first end plate, second supporting steps are arranged between the second clamping strips and the second end plate, first mounting steps and second mounting steps are formed between the two end portions of the clamping groove and the two end faces of the stator core respectively, when the stator assembly is wrapped by the front end cover and the rear end cover, the first supporting steps on the front end cover are matched with the first mounting steps, and the second supporting steps on the rear end cover are matched with the second mounting steps.

The stator core is composed of two half cores, and 1 printed circuit board is mounted on the plastic insulators of the two half cores.

The back end cover is characterized in that an installation cover is installed on the top surface of a second end plate of the back end cover, a third cavity is arranged in the installation cover, and a PG plate is installed in the third cavity.

The installation cover comprises an end plate and an annular side wall axially extending from the edge of the end plate, an annular convex plate circumferentially extends from the edge of the annular side wall, a third cavity is defined between the end plate and the annular side wall, a plurality of bosses are arranged on the end plate, protrusions are arranged on the bosses, notches corresponding to the protrusions on the bosses are arranged on the PG plate, and the PG plate is supported on the bosses and matched with the protrusions through the notches.

And a magnetic ring is arranged in the third cavity of the mounting cover, the magnetic ring is arranged at the tail end of the rotating shaft, the tail end of the rotating shaft penetrates through the second shaft hole to extend into the third cavity, and the magnetic ring is matched with the PG plate for induction.

The annular convex plate is provided with a plurality of third mounting holes, the second end plate of the rear end cover is provided with a plurality of fourth mounting holes, and the mounting cover is locked on the rear end cover through screwing the third mounting holes and the fourth mounting holes.

Compared with the prior art, the utility model, following effect has:

1) the utility model discloses a front end housing, rear end housing, stator module, rotor subassembly and pivot, front end housing and rear end housing are installed together and are formed and hold the chamber, and stator module nestification is placed in and is held the chamber the inside in the rotor subassembly outside, and the pivot links together with the rotor subassembly, and the pivot supporting is on the bearing of front end housing and rear end housing, its characterized in that: the front end cover and the rear end cover are both aluminum alloy end covers, a plurality of first mounting holes are formed in the front end cover, a plurality of second mounting holes are formed in the rear end cover, the front end cover and the rear end cover are locked by screwing screws into the second mounting holes, penetrating through the accommodating cavity and matching with the first mounting holes, the structure is simple and firm to mount, the traditional plastic package motor can be replaced, the application range is wide, the product production rejection rate can be reduced, and the fireproof effect is good;

2) other advantages are detailed in the detailed description of the embodiments.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is another perspective view of the present invention;

fig. 3 is a first exploded perspective view of the present invention;

fig. 4 is a second exploded perspective view of the present invention;

fig. 5 is a third exploded perspective view of the present invention;

fig. 6 is a fourth exploded perspective view of the present invention;

fig. 7 is a schematic structural view of the stator core of the present invention;

fig. 8 is a perspective view of the stator assembly of the present invention;

figure 9 is another angular perspective view of the stator assembly of the present invention;

fig. 10 is a top view of the present invention;

FIG. 11 is a cross-sectional view A-A of FIG. 10;

fig. 12 is a front view of the present invention;

FIG. 13 is a cross-sectional view B-B of FIG. 12;

fig. 14 is a partial enlarged view of C in fig. 13;

fig. 15 is a bottom view of the present invention;

fig. 16 is a cross-sectional view D-D of fig. 15.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the following detailed description of preferred embodiments and accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 to 16, the present embodiment provides a motor, which includes a front end cover 1, a rear end cover 2, a stator assembly 3, a rotor assembly 4, and a rotating shaft 5, where the front end cover 1 and the rear end cover 2 are installed together to form an accommodating cavity 100, the stator assembly 3 is nested outside the rotor assembly 4 and inside the accommodating cavity 100, the rotating shaft 5 is connected to the rotor assembly 4, and the rotating shaft 5 is supported on bearings 6 of the front end cover 1 and the rear end cover 2, and is characterized in that: front end housing 1 and rear end housing 2 all are the aluminum alloy end cover, be equipped with the first mounting hole 11 of a plurality of on front end housing 1, be equipped with a plurality of second mounting hole 21 on the rear end housing 2, screw in second mounting hole 21 through screw 7, pass and hold chamber 100 back and lock front end housing 1 and rear end housing 2 with the cooperation of first mounting hole 11, the simple and firm of structural installation can replace traditional plastic envelope motor, and application scope is wide, can also reduce the product production disability rate, and fire control effect is good.

Front end housing 1 includes first end plate 12 and the first cylinder 13 of the marginal axial extension of following first end plate 12, and the outside protrusion in first end plate 12 center has first bearing frame 14, is equipped with the first bearing room 15 that is used for installing bearing 6 in the first bearing frame 14, be equipped with first shaft hole 141 on the first bearing frame 14, first shaft hole 141 is stretched out to pivot 5, be equipped with a plurality of first mounting holes 11 on the first end plate 12, first mounting hole 11 is the screw hole, simple structure.

The rear end cover 2 comprises a second end plate 22 and a second cylinder 23 axially extending from the edge of the second end plate 22, a second bearing seat 24 protrudes inwards from the center of the second end plate 22, a second bearing chamber 25 for mounting a bearing 6 is arranged in the second bearing seat 24, a second shaft hole 241 is arranged on the second bearing seat 24, a rotating shaft 5 extends out of the second shaft hole 241, and a plurality of second mounting holes 21 are arranged on the second end plate 22.

The inner wall surface of the first cylinder body 13 is provided with a plurality of first clamping strips 132, the inner wall surface of the second cylinder body 23 is provided with a plurality of second clamping strips 232, the stator assembly 3 comprises a stator core 31, a plastic insulator 32 and a coil winding 33, the stator core 31 is spliced by two half cores 311 to form an annular yoke 312 and a plurality of teeth 313 extending from the annular yoke 312, a coil inserting groove 314 is formed between two adjacent teeth 313, the plastic insulator 32 wraps the two end surfaces of the stator core 31, the outer surface of the stator core 31 and the wall surface of the coil inserting groove 314 and then winds the coil winding 33, the coil winding 33 is wound on the annular yoke 312 of the stator core 31, the outer surface of the plastic insulator 32 is provided with a plurality of clamping grooves 321, the clamping grooves 321 expose the outer surface and the end surface of the stator core 31 partially, and the clamping grooves 321 are respectively matched with the first clamping strips 132 and the second clamping strips 232 correspondingly, can prevent 3 circumferential direction of stator module, it is fixed effectual.

First supporting steps 133 are arranged between the first clamping strips 132 and the first end plate 12, second supporting steps 220 are arranged between the second clamping strips 232 and the second end plate 22, first mounting steps 315 and second mounting steps 316 are formed between the two end portions of the clamping groove 321 and two end faces of the stator core 31 respectively, when the stator assembly 3 is wrapped by the front end cover 1 and the rear end cover 2, the first supporting steps 133 on the front end cover 1 are matched with the first mounting steps 315, the second supporting steps 220 on the rear end cover 2 are matched with the second mounting steps 316, and therefore the end plates of the two end covers can be prevented from being extruded to the coil windings 33.

The stator core 31 is composed of two

half cores

311, and 1 printed circuit board 34 is mounted on the plastic insulator 32 of each half core 311.

The top surface of the second end plate 22 of the rear end cap 2 is provided with an installation cover 26, a third cavity 261 is arranged in the installation cover 26, and the PG plate 8 is installed in the third cavity 261, so that components on the PG plate 8 can be prevented from being extruded by the second end plate 22.

The mounting cover 26 includes an end plate 262 and an annular side wall 263 extending axially from the edge of the end plate 262, an annular convex plate 264 extends circumferentially from the edge of the annular side wall 263, a third cavity 261 is enclosed between the end plate 262 and the annular side wall 263, a plurality of bosses 265 are arranged on the end plate 262, protrusions 266 are arranged on the bosses 265, notches 81 corresponding to the protrusions 266 on the bosses 265 are arranged on the PG plate 8, the PG plate 8 is supported on the bosses 265 and is matched with the protrusions 266 through the notches 81, so that the PG plate is not easy to loosen, and the PG plate 8 is supported on two sides of the bosses 265, so that components on the PG plate 8 cannot be pressed by the second end plate 22.

A magnetic ring 9 is further arranged in the third cavity 261 of the mounting cover 26, the magnetic ring 9 is mounted at the tail end of the rotating shaft 5, the tail end of the rotating shaft 5 penetrates through the second shaft hole 241 and extends into the third cavity 261, and the magnetic ring 9 and the PG plate 8 are matched for induction.

The annular convex plate 264 is provided with a plurality of third mounting holes 2641, the second end plate 22 of the rear end cover 2 is provided with a plurality of fourth mounting holes 221, and the mounting cover 26 is locked on the rear end cover 2 through screwing the third mounting holes 2641 and the fourth mounting holes 221, so that the structure is simple and the mounting is convenient.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.

Claims

1. The utility model provides a motor, includes front end housing (1), rear end cap (2), stator module (3), rotor subassembly (4) and pivot (5), front end housing (1) and rear end cap (2) are installed together and are formed and hold chamber (100), and stator module (3) nestification is in the chamber (100) the inside in placing in rotor subassembly (4) outside, and pivot (5) link together with rotor subassembly (4), and pivot (5) support is on bearing (6) of front end housing (1) and rear end cap (2), its characterized in that: front end housing (1) and rear end cap (2) all are the aluminum alloy end cover, be equipped with a plurality of first mounting hole (11) on front end housing (1), be equipped with a plurality of second mounting hole (21) on rear end cap (2), through screw (7) precession second mounting hole (21), pass and hold chamber (100) back and first mounting hole (11) cooperation with front end housing (1) and rear end cap (2) locking.

2. An electric machine as claimed in claim 1, characterized in that: front end housing (1) includes first end plate (12) and first cylinder (13) from the marginal axial extension of first end plate (12), and the outside protrusion in first end plate (12) center has first bearing frame (14), is equipped with first bearing room (15) that are used for installing bearing (6) in first bearing frame (14), be equipped with first shaft hole (141) on first bearing frame (14), first shaft hole (141) are stretched out in pivot (5), be equipped with a plurality of first mounting holes (11) on first end plate (12), first mounting hole (11) are the screw hole.

3. An electrical machine according to claim 2, wherein: the rear end cover (2) comprises a second end plate (22) and a second cylinder (23) extending axially from the edge of the second end plate (22), a second bearing seat (24) protrudes inwards from the center of the second end plate (22), a second bearing chamber (25) used for mounting a bearing (6) is arranged in the second bearing seat (24), a second shaft hole (241) is formed in the second bearing seat (24), the rotating shaft (5) extends out of the second shaft hole (241), and a plurality of second mounting holes (21) are formed in the second end plate (22).

4. A machine as claimed in claim 3, characterized in that: the inner wall surface of the first cylinder body (13) is provided with a plurality of first clamping strips (132), the inner wall surface of the second cylinder body (23) is provided with a plurality of second clamping strips (232), the stator assembly (3) comprises a stator core (31), a plastic insulator (32) and a coil winding (33), the stator core (31) is spliced by two half iron cores (311) to form an annular yoke part (312) and a plurality of teeth (313) extending from the annular yoke part (312), a coil inserting groove (314) is formed between every two adjacent teeth (313), the plastic insulator (32) wraps the two end surfaces of the stator core (31), the outer surface of the stator core (31) and the wall surface of the coil inserting groove (314) and then winds the coil winding (33), the coil winding (33) is wound on the annular yoke part (312) of the stator core (31), and a plurality of clamping grooves (321) are arranged on the outer surface of the plastic insulator (32), the outer surface and the end face of the stator core (31) are partially exposed outside through the clamping groove (321), and the clamping groove (321) is correspondingly matched with the first clamping strip (132) and the second clamping strip (232) respectively.

5. An electrical machine according to claim 4, wherein: be equipped with first supporting step (133) between first card strip (132) and first end plate (12), be equipped with second supporting step (220) between second card strip (232) and second end plate (22), form first installation step (315) and second installation step (316) with the both ends face of stator core (31) respectively between the both ends of draw-in groove (321), when front end housing (1) and rear end cap (2) wrapped up stator module (3), first supporting step (133) on front end housing (1) and first installation step (315) cooperation, second supporting step (220) and second installation step (316) cooperation on rear end cap (2).

6. An electric machine as claimed in claim 5, characterized in that: the stator core (31) is composed of two half cores (311), and 1 printed circuit board (34) is mounted on the plastic insulators (32) of the two half cores (311).

7. An electrical machine according to claim 4, wherein: an installation cover (26) is installed on the top surface of a second end plate (22) of the rear end cover (2), a third cavity (261) is arranged in the installation cover (26), and a PG plate (8) is installed in the third cavity (261).

8. An electric machine as claimed in claim 7, characterized in that: the installation cover (26) comprises an end plate (262) and an annular side wall (263) axially extending from the edge of the end plate (262), an annular convex plate (264) circumferentially extends from the edge of the annular side wall (263), a third cavity (261) is enclosed between the end plate (262) and the annular side wall (263), a plurality of bosses (265) are arranged on the end plate (262), protrusions (266) are arranged on the bosses (265), notches (81) corresponding to the protrusions (266) on the bosses (265) are arranged on the PG plate (8), and the PG plate (8) is supported on the bosses (265) and matched with the protrusions (266) through the notches (81).

9. An electric machine as claimed in claim 8, characterized in that: a magnetic ring (9) is further arranged in a third cavity (261) of the mounting cover (26), the magnetic ring (9) is mounted at the tail end of the rotating shaft (5), the tail end of the rotating shaft (5) penetrates through the second shaft hole (241) to extend into the third cavity (261), and the magnetic ring (9) and the PG plate (8) are matched for induction.

10. A machine as claimed in claim 9, characterized in that: the annular convex plate (264) is provided with a plurality of third mounting holes (2641), the second end plate (22) of the rear end cover (2) is provided with a plurality of fourth mounting holes (221), and the mounting cover (26) is locked on the rear end cover (2) through screwing the third mounting holes (2641) and the fourth mounting holes (221).