TWI455450B - Assembly mechanism for stator of motor and assembly method for the same - Google Patents

Description

Motor stator assembly device and method

The invention relates to a combined device and an assembly method of a motor stator.

During the assembly of the stator inside and outside the motor, the inner stator and the bobbin are usually assembled together and then pressed into the outer stator. However, due to the small tolerance of the clearance between the inner and outer stators, the inner stator is prone to positional deviation or tilt during the process of pressing into the outer stator, which causes problems such as difficulty in assembly and deformation of the stator.

In view of the above, it is desirable to provide a motor stator assembly and method that can prevent internal stator deflection and damage the outer stator.

A motor stator assembly device for loading an inner stator having a bobbin top mounted therein into an outer stator having a receiving cavity, the motor stator assembly device comprising a pressing mechanism and a first positioning plate provided with a perforation The pressing mechanism includes a support base supporting the outer stator and a press-in module movable up and down relative to the support base, the first positioning plate being mounted on an upper portion of the outer stator, the first positioning plate The through hole cooperates with the inner stator for clearance, and is configured to guide the inner stator to pass through the through hole of the first positioning plate and enter the receiving cavity of the outer stator under the action of the pressing module.

A motor stator assembly method for loading an inner stator with a bobbin mounted on top thereof into an outer stator having a receiving cavity, the method comprising: providing a perforation The first positioning plate is disposed on the upper portion of the outer stator, the through hole of the first positioning plate is matched with the inner stator; and the inner stator is inserted into the through hole of the first positioning plate; A pressing mechanism is provided to press the inner stator along the perforation of the first positioning plate into the receiving cavity of the outer stator.

Compared with the prior art, the motor stator assembly device and method can guide the inner stator to press into the outer stator through the perforation of the first positioning plate, and the operation is convenient, and the internal stator positioning offset or inclination is prevented from damaging the outer stator.

10 ‧ ‧ inner stator

13‧‧‧Flange

20‧‧‧Outer stator

21‧‧‧ containment chamber

30‧‧‧Support table

31‧‧‧Down

32‧‧‧ Guide column

40‧‧‧Indented module

42‧‧‧through hole

45‧‧‧上模

50‧‧‧Second positioning plate

51, 61, 71‧ ‧ piercing

60‧‧‧First Positioning Plate

65‧‧‧ dent

652‧‧‧ side wall

63‧‧‧Guide

70‧‧‧ third positioning plate

80‧‧‧ coil holder

1 is a perspective exploded view of a preferred embodiment of a motor stator assembly of the present invention and two stators and a bobbin.

2 is another perspective view of the first positioning plate of FIG. 1.

Figure 3 is a partial assembled view of Figure 1.

4 is a view showing an assembled state of use of FIG. 1.

Referring to FIG. 1, a preferred embodiment of a motor stator assembly of the present invention is used to fit an inner stator 10 into a receiving cavity 21 of an outer stator 20. The motor stator assembly device includes a pressing mechanism, a second positioning plate 50, a first positioning plate 60 and a third positioning plate 70.

A bobbin 80 is fixed to the top of the inner stator 10.

The pressing mechanism includes a support table 30 and a press-in module 40 that moves up and down relative to the support table 30. The support table 30 is provided with two guide posts 32. A lower die 31 is provided between the two guide posts 32 to cooperate with the bottom of the inner stator 10. The press-in module 40 is respectively provided with a through hole 42 adjacent to both ends thereof, and an upper die 45 extends vertically downward in the middle. In this embodiment, the The pressing mechanism is a one-hand pressing table.

A through hole 61 is defined in the middle of the first positioning plate 60, and the through hole 61 is matched with the inner stator 10 so that the inner stator 10 passes through. Referring to FIG. 2, one side of the first positioning plate 60 forms a recess 65 communicating with the through hole 61. The shape and size of the side wall 652 of the recess 65 match the shape and size of the outer side wall of the outer stator 20. In the present embodiment, the outer side wall of the inner stator 10 is provided with a plurality of flanges 13 in the longitudinal direction. The inner wall of the through hole 61 of the first positioning plate 60 is provided with a plurality of guide grooves 63 that cooperate with the flanges 13.

A through hole 51 is defined in the middle of the second positioning plate 50, and the through hole 51 is matched with the outer stator 20.

A through hole 71 is defined in the middle of the third positioning plate 70, and the through hole 71 is in interference fit with the upper mold 45.

Referring to FIG. 3 and FIG. 4 , the second positioning plate 50 is mounted on the support base 30 through a lock such as a latch or a screw during assembly, so that the lower die 31 of the support base 30 is received in the second positioning. Inside the perforations 51 of the plate 50. The third positioning plate 70 is sleeved on the bottom of the upper mold 45 of the press-in module 40. Since the third positioning plate 70 and the upper mold 45 are in an interference fit, the third positioning plate 70 is fixed relative to the upper mold 45. In other embodiments, the third positioning plate 70 can also be fixed to the upper mold 45 by a fastener such as a screw.

The bottom of the outer stator 20 is inserted into the through hole 51 of the second positioning plate 50, so that the outer stator 20 is stuck to the second positioning plate 50. The first positioning plate 60 is placed on the outer stator 20 such that the upper portion of the outer stator 20 is engaged with the recess 65 of the first positioning plate 60. The inner stator 10 is inserted into the through hole 61 of the first positioning plate 60. The pressing module 40 is moved toward the support table 30, and the third positioning plate 70 fixed to the upper mold 45 is abutted against the predetermined The bobbin 80 at the upper portion of the sub-10 moves the bobbin 80 and the inner stator 10 together along the inner wall of the perforation 61 of the first positioning plate 60 toward the receiving cavity 21 of the outer stator 20. The guide posts 32 of the support table 30 are respectively inserted into the corresponding through holes 42 of the press-in module 40 to guide the press-fit module 40 to move smoothly. When the bottom of the inner stator 10 is engaged with the lower die 31 of the support table 30, the inner stator 10 is assembled with the outer stator 20.

The assembled inner stator 10 and the outer stator 20 can be taken out by moving the press-in module 40 upward.

During the assembly process, the through hole 61 of the first positioning plate 60 can guide the inner stator 10 into the outer stator 20 to prevent the inner stator 10 from being displaced or tilted to damage the outer stator 20, thereby creating the function of protecting the outer stator 20. . The second positioning plate 50 fixes the bottom of the outer stator 20 to prevent the outer stator 20 from moving. The third positioning plate 70 presses the bobbin 80 together with the upper mold 45, which increases the contact area between the press-in module 40 and the bobbin 80, thereby avoiding damage to the bobbin 80 by the upper mold 45 when the positioning is deviated. The function of protecting the bobbin 80 is produced.

The technical problem to be solved by the present invention is to prevent the outer stator 10 from being damaged and to damage the outer stator 20. In other embodiments, the second positioning plate 50 and the third positioning plate 70 may be omitted. The stator 20 is placed on the support table 30, and the first positioning plate 60 is placed on the outer stator 20, so that the upper portion of the outer stator 20 is engaged with the recess 65 of the first positioning plate 60, and the inner stator 10 is inserted into the outer stator 20. The through hole 61 of the first positioning plate 60 moves the press-in module 40 toward the support table 30 and abuts against the bobbin 80 at the upper portion of the inner stator 10, and pushes the bobbin 80 and the inner stator 10 along The inner wall of the through hole 61 of the first positioning plate 60 moves into the receiving cavity 21 of the outer stator 20.

10 ‧ ‧ inner stator

21‧‧‧ containment chamber

30‧‧‧Support table

32‧‧‧ Guide column

40‧‧‧Indented module

42‧‧‧through hole

45‧‧‧上模

50‧‧‧Second positioning plate

60‧‧‧First Positioning Plate

70‧‧‧ third positioning plate

80‧‧‧ coil holder

Claims (10)

A motor stator assembly device for loading an inner stator having a bobbin top mounted therein into an outer stator having a receiving cavity, the motor stator assembly device comprising a pressing mechanism and a first positioning plate provided with a perforation The pressing mechanism includes a support base supporting the outer stator and a press-in module movable up and down relative to the support base, the first positioning plate being mounted on an upper portion of the outer stator, the first positioning plate The through hole cooperates with the inner stator for clearance, and is configured to guide the inner stator to pass through the through hole of the first positioning plate and enter the receiving cavity of the outer stator under the action of the pressing module. The motor stator assembly device of claim 1, wherein the support table is provided with a second positioning plate provided with a perforation, and the bottom of the outer stator is received in the perforation of the second positioning plate. The motor stator assembly device of claim 1, wherein the press-in module is provided with a vertically downwardly extending upper die, and a bottom of the upper die is fixed with a third positioning plate provided with a perforation, the third The positioning plate presses the inner stator into the outer stator together with the press-in module. The motor stator assembly device of claim 1, wherein one side of the first positioning plate forms a recess communicating with the perforation thereon, the shape and size of the side wall of the recess and the outer side wall of the outer stator The shape is matched with the size for clamping the upper portion of the outer stator. The motor stator assembly device of claim 1, wherein the outer side wall of the inner stator is provided with a plurality of flanges in a longitudinal direction, and the inner wall of the perforation of the first positioning plate is provided with a plurality of flanges. Guide channel. The motor stator assembly device of claim 1, wherein the press-in module is provided with two through holes, and the support table is provided with two guide columns respectively insertable into the two through holes. A motor stator assembly method for loading an inner stator with a bobbin mounted on top An outer stator having a receiving cavity, the method comprising: providing a first positioning plate having a perforation, the first positioning plate being carded on an upper portion of the outer stator, the perforation of the first positioning plate and the inner stator being The clearance is matched; the inner stator is inserted into the through hole of the first positioning plate; and a pressing mechanism is provided to press the inner stator along the perforation of the first positioning plate into the receiving cavity of the outer stator. The motor stator assembly method according to claim 7, wherein the pressing mechanism comprises a support table, and the support table is provided with a second positioning plate provided with a perforation, and the bottom of the outer stator is received in the first The two positioning plates are perforated and supported on the support table. The motor stator assembly method of claim 8, wherein the pressing mechanism comprises a press-in module that moves up and down relative to the support table, and the press-in module is provided with a vertically downwardly extending upper mold, A third positioning plate provided with a perforation is fixed to the bottom of the upper mold for pressing the inner stator into the outer stator. The motor stator assembly method of claim 7, wherein one side of the first positioning plate forms a recess communicating with the perforation thereon, the shape and size of the side wall of the recess and the outer side wall of the outer stator The shape is matched with the size for clamping the upper portion of the outer stator.