TWI408875B - Motor rotating device - Google Patents

Abstract

A motor rotating device includes a hub, a shaft and a retaining member. The hub has an assembly hole with a first opening and a second opening. A first abutting portion and a second abutting portion are located on edges of the first opening and the second opening respectively. A stop portion is formed between the first and the second abutting portions. The shaft is mounted on the assembly hole of the hub. An engaging groove, a limiting portion and a positioning portion are received between a first end and a second end of the shaft. The engaging groove is aligned with the first abutting portion and the limiting portion is aligned with the second abutting portion. The positioning portion is aligned with the stop portion. The retaining member connects with the engaging groove of the shaft and abuts against the first abutting portion of the hub. Therefore, the combined security and convenience for assembly can be enhanced.

Description

Motor rotating part

The present invention relates to a rotating member, and more particularly to a rotating member for a motor.

Referring to FIG. 1 , it is a patent of the "Pivot Structure of a Small Motor Rotor" of the Republic of China Announcement No. 443671, which discloses a conventional motor structure. The motor 8 generally includes a housing 81 and a stator. 82 and a rotor 83. The housing 81 is coupled to a shaft tube 811; the stator base 82 is coupled to the shaft tube 811 of the housing 81; the rotor 83 includes a hub 831, a spindle 832 and a permanent magnet 833; the hub 831 is integrally molded and coated. One end of the mandrel 832, the other end of the mandrel 832 is rotatably coupled to the shaft tube 811, and the permanent magnet 833 is coupled to the inside of the hub 831; thereby, the stator seat 82 can be used to drive the magnetic field after being energized to generate the magnetic field. The rotor 83 is rotated.

The conventional motor 8 is an outer rotor type motor cymbal. When the motor 8 is actually assembled, the assembly of the housing 81 and the stator base 82 can be completed before the rotor 83 is assembled. The shaft tube 811 of the housing 81; therefore, the conventional motor 8 is adapted to previously cover the mandrel 832 by integrally forming the hub 831, and then inserting the mandrel 832 into the shaft tube 811. However, in view of various conventional motor structures currently available on the market, there are still some motor structures that are not suitable for assembling the hub 831 and the mandrel 832 which have been integrally formed in advance, and the mandrel and components such as the housing and the stator base must be clamped. After the assembly is completed (not shown), the hub 831 can be assembled to one end of the mandrel in an assembled manner.

For example, please refer to FIG. 2, which is a patent of the "Home AC Fan Motor" of the Republic of China No. M243849, which discloses another conventional motor structure. The motor 9 has a base 91, and the base 91 is provided with a shaft tube 911. The base 91 of the motor 9 is assembled in advance by a member such as a certain subunit 92 and a shaft 93, wherein the shaft 93 is assembled. The shaft tube 911 is rotatably coupled, and one end of the shaft center 93 forms a threaded portion 931 protruding from the shaft tube 911; in addition, after completing the assembly work of the above-mentioned components, the hub of a rotor 94 is finally finally The 941 is screwed to the threaded portion 931 of the shaft 93.

However, in the actual assembly of the hub 941 of the conventional motor 9, the hub 941 must be tightly screwed to the threaded portion 931 of the shaft 93, assuming that the hub 941 and the shaft 93 are not secured. When the two can be tightly coupled, the rotor 94 will be affected by the subsequent unsuccessful rotation, which causes a lot of inconvenience in assembly. Furthermore, after the rotor 94 of the motor 9 is rotated for a long time, the hub 941 and the shaft are 93 is only coupled to each other by screwing, and there is no other structural design that can effectively prevent the hub 941 from falling off the shaft 93. Therefore, the hub 941 may still be from the shaft during the rotation of the rotor 94. 93 fell off, causing a lot of inconvenience in use.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the above-described disadvantages and to provide a motor rotating member that can surely prevent the hub from falling out of the spindle.

Another object of the present invention is to provide a motor rotating member that is more convenient to assemble.

It is still another object of the present invention to provide a motor rotating member that has both the axial and radial positioning functions of the hub.

In order to achieve the foregoing object, the technical content of the present invention is as follows: A motor rotating member includes a hub, a spindle and a holding member. The first end of the first opening and the second opening are respectively provided with a first abutting portion and a second abutting portion. A stop portion is formed between the abutting portion and the second abutting portion; the mandrel is coupled to the assembly hole of the hub, the mandrel has a first end and a second end, the first end and A card slot, a retaining portion and a positioning portion are disposed between the second end, the pair of the latching slots are located at the first abutting portion, and the pair of the retaining portions are located at the second abutting portion, and the positioning portion is coupled to the positioning portion The stopping portion is opposite to each other; the fastening member is coupled to the card slot of the spindle and abuts the first abutting portion of the hub. In this way, in order to achieve a combination of improved stability and assembly convenience.

The above and other objects, features and advantages of the present invention will become more <RTIgt; As shown, the motor rotating member of the present invention comprises a hub 1, a spindle 2 and a holding member 3. The mandrel 2 is coupled to the hub 1; the retaining member 3 is coupled to one end of the mandrel 2 to effectively prevent the hub 1 from falling off the mandrel 2.

The hub 1 is provided with an assembly hole 11 extending from one side of the hub 1 to the other side, so that the opposite ends of the assembly hole 11 form a first opening 111 and a second opening 112; A first abutting portion 12 and a second abutting portion 13 are respectively disposed at a periphery of the opening 111 and the second opening 112. A stop is formed between the first abutting portion 12 and the second abutting portion 13. Part 14.

The mandrel 2 is coupled to the assembly hole 11 of the hub 1. The opposite ends of the mandrel 2 extending through the assembly hole 11 are a first end 21 and a second end 22, respectively. In addition, a card slot 23, a retaining portion 24 and a positioning portion 25 are disposed between the first end 21 and the second end 22 of the spindle 2; the latching groove 23, the retaining portion 24 and the positioning portion 25 are preferably Adjacent to the first end 21, when the mandrel 2 is extended and coupled to the assembly hole 11, the card slot 23 can be opposite to the first abutting portion 12 of the hub 1, and the retaining portion 24 is located at the same The second abutting portion 13 of the hub 1 is preferably located between the slot 23 and the retaining portion 24, so that the positioning portion 25 can be opposite to the stopping portion 14.

The fastening member 3 is configured to be coupled to the card slot 23 of the spindle 2 such that the fastening member 3 can abut against the first abutting portion 12 of the hub 1; thereby utilizing the fastening member 3 The mandrel 2 is effectively prevented from coming off the assembly hole 11 of the hub 1.

The motor rotating member of the present invention can be applied to various motor structures, for example, a motor in which the hub is not integrally molded with a mandrel, an inner rotor type motor or other suitable motor or the like. For example, referring to FIG. 6 , a 〝 inner rotor type motor 4 揭示 is disclosed. Since the assembly work of the inner inner rotor motor 4 is generally performed, it is preferable to complete the assembly of the mandrel 2 beforehand. The hub 1 is assembled to one end of the mandrel 2, and therefore, the motor rotating member of the present invention can be applied to the inner rotor type motor 4.

More specifically, the inner rotor type motor 4 has a motor casing 41, and the inner side of the motor casing 41 is coupled to a certain subset 42 and a plurality of bearings 43 (only one bearing 43 may be provided). The mandrel 2 of the present invention rotatably couples the plurality of bearings 43, which are adapted to incorporate a permanent magnet 44 having an air gap between the permanent magnet 44 and the stator set 42 so that the stator set 42 can be driven The mandrel 2 rotates; further, the first end 21 of the mandrel 2 protrudes from the outside of the motor casing 41, and the second end 22 is pivotally connected to one of the bearings 43; thereby, as shown in Fig. 7, the 俟 is completed After assembling the motor case 41, the stator set 42, the plurality of bearings 43, the permanent magnet 44, and the mandrel 2, the hub 1 can be assembled to the first end 21 of the spindle 2 and The holding member 3 is coupled to the card slot 23 of the spindle 2 to complete the assembly work of the inner rotor motor 4.

With the structural features disclosed above, the main features of the motor rotating member of the present invention are:

1. Good combination stability: As shown in FIG. 4, the present invention can use the holding member 3 to abut the first abutting portion 12 of the hub 1 and cooperate with the anti-seizure portion 24 of the mandrel 2 to be located. The second abutting portion 13 of the hub 1; thereby, the assembly hole 11 of the hub 1 can be limited between the fastening member 3 and the retaining portion 24 of the mandrel 2; therefore, the mandrel 2 is In the axial direction, it is ensured that the mandrel 2 does not arbitrarily detach from the assembly hole 11 of the hub 1. In addition, as shown in FIG. 5, when the mandrel 2 is coupled to the assembly hole 11 of the hub 1, the positioning portion 25 of the spindle 2 can also be opposed to the stop portion 14 of the hub 1; therefore, in the center In the radial direction of the shaft 2, the stop 14 limits the spindle 2 from arbitrarily rotating relative to the hub 1. In general, the present invention can be designed by the front structure, so that the mandrel 2 has a plurality of positioning effects such as axial anti-dropping and radial anti-rotation, so that the mandrel 2 can be more stably combined with the hub 1. .

2. Assembly convenience: as shown in Figures 6 and 7, when the motor rotating member of the present invention is assembled and used, the hub 1 only needs to be fitted to the first end 21 of the spindle 2, so that the card slot 23 and After the retaining portion 24 is located on the first abutting portion 12 and the second abutting portion 13 of the hub 1 , the retaining member 3 is forced into the card slot 23 of the spindle 2 to complete the assembly work. Therefore, the overall assembly work is quite easy, and the assembly work can be completed quickly; and after the assembly work is completed, the combination of the hub 1 and the mandrel 2 is also good, so that the assembly convenience can be effectively improved.

According to the structural design concept of the motor rotating member of the present invention, the motor rotating member of the present invention may further comprise at least one accessory structural feature or a combination thereof as described below, so that the function of the motor rotating member of the present invention is more perfect, for example, :

1. Referring to Figures 3 and 4, the stop portion 14 of the hub 1 can be a face 141 formed on the inner hole wall of the assembly hole 11, and the face 141 is from the first opening 111. An axial direction extends toward the second opening 112; the positioning portion 25 of the spindle 2 forms a plane 251 opposite to the cutting plane 141, and the plane 251 can extend axially from the first end 21 by a predetermined distance. In addition, the plane 251 is preferably abutted against the cut surface 141 of the hub 1; thereby, when the cut surface 141 and the plane 251 are closely adhered to each other, the stop of the stop portion 14 of the hub 1 can be further increased. Acting to effectively prevent the spindle 2 from rotating arbitrarily with respect to the hub 1.

2, the second abutting portion 13 of the hub 1 may be a groove 131 formed on the periphery of the second opening 112, and the retaining portion 24 of the mandrel 2 may be a a convex surface 241 located at the bottom of the plane 251 of the mandrel 2 (the bottom portion refers to the side of the plane 251 facing the second end 22 as shown), and the convex surface 241 faces the groove 131 An adjustment gap (not shown) is formed between the groove 131 and the convex surface 241. Therefore, in order to avoid the situation that the holding member 3 cannot or is not easily forced into the card slot 23 of the mandrel 2, the design of the adjusting gap can provide a mounting margin to facilitate the holding member. 3 directly into the card slot 23 of the mandrel 2.

3. As shown in FIG. 8 and FIG. 9 , a reinforcing member 5 may be further disposed between the first opening 111 and the second opening 112 of the assembly hole 11 of the hub 1 , and the hub 1 is preferably formed by integral injection molding. The reinforcing member 5 can be embedded in the assembly hole 11 of the hub 1 in combination with the outer periphery of the reinforcing member 5. In addition, the reinforcing member 5 is also provided with a through hole 51 through which the mandrel 2 can be inserted. Thereby, when the assembly hole 11 of the hub 1 is provided with the reinforcement member 5, the reinforcement member 5 can be used to strengthen the overall structural strength of the hub 1 so as to assemble the hub 1, the mandrel 2 and the fastening member 3. In this case, the assembly hole 11 of the hub 1 can be effectively prevented from being damaged or deformed.

4. The inner side of the through hole 51 of the reinforcing member 5 is preferably further formed with an auxiliary stopping portion 511. The positioning portion 25 of the mandrel 2 can also be used as shown in the figures 8 and 9 and FIG. Facing the auxiliary stopper portion 511, the stopper portion 14 originally disposed between the first abutting portion 12 and the second abutting portion 13 is engaged, so that the stopper portion 14 and the auxiliary stopper portion 511 can be At the same time, the rotation of the mandrel 2 is restricted to ensure that the mandrel 2 does not rotate arbitrarily with respect to the hub 1.

5. Referring to Figures 8, 9, and 10, the outer periphery of the reinforcing member 5 is preferably formed with a plurality of fins 52. With the design of each of the tabs 52, the hub 1 is integrally formed by injection molding. When the reinforcing member 5 is combined, the hub 1 can cover each of the tabs 52 at the same time. Thereby, the joint area between the reinforcing member 5 and the hub 1 can be effectively increased, and the structural strength of the hub 1 can be further improved.

6. The first opening 111 of the hub 1 can be formed with a receiving groove 15 for receiving the holding member 3; thereby, when the holding When the piece 3 is located in the accommodating groove 15, it does not occupy too much space to relatively reduce the overall axial height of the motor rotating member of the present invention, so as to be applied to the miniaturized motor structure.

7. As shown in FIG. 11 and FIG. 12, the fastening member 3 can have a fastening slot 31 for engaging with the slot 23 of the spindle 2, and the fastening slot 31 is coupled to the slot 31. A plurality of elastic buckles 311 are formed on the inner side, and each of the elastic fastening pieces 311 has a gap therebetween, and each of the elastic fastening pieces 311 extends into the inner side of the card slot 23 of the mandrel 2 . Therefore, the design of each of the elastic clasps 311 can make the retaining member 3 easier to be forced into the slot 23 of the mandrel 2, and the deformation or damage of the retaining member 3 after assembly is avoided. The fastening member 3 can also be more tightly coupled to the card slot 23 of the spindle 2 by using each of the elastic buckles 311.

8. The first abutting portion 12 of the hub 1 is provided with a notch 32. The first abutting portion 12 of the hub 1 is provided with a notch 32. The positioning protrusions 121 are formed. The positioning protrusions 121 can extend into the notches 32 of the fastening member 3 to utilize the positioning protrusions 121. The clip is engaged with the notch 32, thereby effectively preventing the holding member 3 from being arbitrarily rotated relative to the hub 1.

9. Referring to Figures 13 and 14, another embodiment of the fastening member 3 is disclosed. The fastening member 3 has a fastening hole 33 for engaging the mandrel 2. a card slot 23, and the inner edge of the fastening hole 33 can extend a plurality of elastic abutting pieces 331, and each of the elastic abutting pieces 331 has a gap therebetween; in addition, each of the elastic abutting pieces 331 faces away from the hub The direction of 1 is obliquely extended, so that each of the elastic abutting pieces 331 protrudes into the card slot 23 of the mandrel 2, and each of the elastic abutting pieces 331 can be abutted against the inner groove wall of the card slot 23. Therefore, each of the elastic abutting pieces 331 can provide a positioning function, so that the holding member 3 can be surely positioned on the card slot 23 of the mandrel 2, thereby providing the mandrel 2 with better anti-leakage. Features.

10. The outer peripheral surface of the hub 1 is formed with a plurality of blades 16; thereby, the hub 1 can also serve as a fan of a cooling fan to provide more diversified ease of use.

It is known that the motor rotating member of the present invention can be restricted between the fastening member 3 and the retaining portion 24 of the spindle 2 by the assembly hole 11 of the hub 1, and the stopping portion 14 can be The technical feature that the mandrel 2 does not arbitrarily rotate with respect to the hub 1 is restricted, and the simple structural design is combined to achieve many functions such as improved joint stability and ease of assembly.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

[this invention]

1. . . Wheel hub

11. . . Assembly hole

111. . . First opening

112. . . Second opening

12. . . First abutment

121. . . Positioning bump

13. . . Second abutment

131. . . Groove

14. . . Stop

141. . . section

15. . . Locating slot

16. . . blade

2. . . Mandrel

twenty one. . . First end

twenty two. . . Second end

twenty three. . . Card slot

twenty four. . . Anti-off part

241. . . Protruding surface

25. . . Positioning department

251. . . flat

3. . . Holder

31. . . Buckle slot

311. . . Elastic buckle

32. . . gap

33. . . Buckle hole

331. . . Elastic abutment piece

4. . . Inner rotor motor

41. . . Motor housing

42. . . Stator group

43. . . Bearing

44. . . permanent magnet

5. . . Reinforcement

51. . . Through hole

511. . . Auxiliary stop

52. . . Tab

[知知]

8. . . motor

81. . . Shell

811. . . Shaft tube

82. . . Stator seat

83. . . Rotor

831. . . Wheel hub

832. . . Mandrel

833. . . permanent magnet

9. . . motor

91. . . Pedestal

911. . . Shaft tube

92. . . Stator unit

93. . . Axis

931. . . Thread part

94. . . Rotor

941. . . Wheel hub

Figure 1: A cross-sectional view of a conventional motor.

Figure 2: A cross-sectional view of another conventional motor.

Figure 3 is an exploded perspective view of the motor rotating member of the present invention.

Fig. 4 is a sectional view showing the combination of the motor rotating member of the present invention.

Figure 5: Top view of the motor rotating member of the present invention.

Fig. 6 is a schematic view showing the assembly of the motor rotating member of the present invention for an inner rotor type motor.

Fig. 7 is a sectional view showing the combination of the motor rotating member of the present invention for an inner rotor type motor.

Fig. 8 is an exploded perspective view showing the motor rotating member of the present invention with a reinforcing member.

Fig. 9 is a sectional view showing the combination of the motor rotating member of the present invention having a reinforcing member.

Fig. 10 is a perspective view showing the reinforcing member of the motor rotating member of the present invention.

Figure 11 is a perspective exploded view of the motor rotating member of the present invention having positioning projections and notches.

Fig. 12 is a sectional view showing the combination of the positioning member and the notch of the motor rotating member of the present invention.

Figure 13 is a perspective exploded view of another embodiment of the retaining member of the motor rotating member of the present invention.

Figure 14 is a sectional view showing the combination of another embodiment of the retaining member for the motor rotating member of the present invention.

Fig. 15 is a sectional view showing the combination of the hub of the motor rotating member of the present invention.

1. . . Wheel hub

11. . . Assembly hole

111. . . First opening

112. . . Second opening

12. . . First abutment

13. . . Second abutment

131. . . Groove

14. . . Stop

141. . . section

2. . . Mandrel

twenty one. . . First end

twenty two. . . Second end

twenty three. . . Card slot

twenty four. . . Anti-off part

241. . . Protruding surface

25. . . Positioning department

251. . . flat

3. . . Holder

Claims (19)

A motor rotating member includes: a hub having an assembly hole, the assembly hole having a first opening and a second opening, wherein the first opening and the periphery of the second opening are respectively provided with a first abutting portion and a first a second abutting portion, a stop portion is formed between the first abutting portion and the second abutting portion; a mandrel is coupled to the assembly hole of the hub, the mandrel has a first end and a first a card slot, a retaining portion and a positioning portion are disposed between the first end and the second end. The pair of the latching slots are located at the first abutting portion, and the pair of the retaining portions are located at the second abutting The positioning portion is opposite to the stopping portion; and a fastening member is coupled to the card slot of the spindle and abuts the first abutting portion of the hub. The motor rotating member according to claim 1, wherein a reinforcing member is disposed between the first opening and the second opening of the assembling hole of the hub, and the reinforcing member is provided with a through hole for the mandrel to extend. The motor rotating member according to claim 2, wherein an inner side of the through hole of the reinforcing member forms an auxiliary stopping portion, and the positioning portion of the mandrel is opposite to the auxiliary stopping portion. The motor rotating member according to claim 2, wherein the hub integrally engages the outer periphery of the reinforcing member. The motor rotating member according to claim 3, wherein the outer periphery of the reinforcing member forms a plurality of fins, and the hub integrally joins the tabs. The motor rotating member according to claim 1, 2, 3, 4 or 5, wherein the stopping portion of the hub is a face formed on a hole wall of the assembling hole, the cutting face being from the first opening The axial direction extends toward the second opening direction, and the positioning portion of the mandrel is a plane opposite to the cutting plane. The motor rotating member according to claim 6, wherein the plane of the mandrel abuts the cut surface of the hub. The motor rotating member according to the sixth aspect of the invention, wherein the second abutting portion of the hub is a groove formed on a circumference of the second opening, and the retaining portion of the spindle is a convex surface. The convex surface is located at the bottom of the plane of the mandrel, the convex surface facing the groove. The motor rotating member according to claim 8 , wherein an adjustment gap is formed between the groove and the convex surface. The motor rotating member according to claim 1, 2, 3, 4 or 5, wherein the holding member has a notch, and the first abutting portion of the hub is provided with a positioning protrusion, and the positioning protrusion extends Enter the gap of the fastener. The motor rotating member according to the seventh aspect of the invention, wherein the holding member has a notch, and the first abutting portion of the hub is provided with a positioning protrusion, and the positioning protrusion extends into the notch of the holding member. The motor rotating member according to claim 9, wherein the holding member has a notch, and the first abutting portion of the hub is provided with a positioning protrusion, and the positioning protrusion extends into the notch of the holding member. The motor rotating member according to claim 1, 2, 3, 4 or 5, wherein the fastening member has a fastening hole, and a plurality of elastic abutting pieces are formed inside the fastening hole, each of the elastic members The struts are facing away from the hub The direction extends obliquely, and each of the elastic abutting pieces protrudes into the card slot of the mandrel and abuts the inner groove wall of the card slot. The motor rotating member according to claim 7, wherein the fastening member has a fastening hole, and a plurality of elastic abutting pieces are formed inside the fastening hole, and each of the elastic abutting pieces faces away from the hub. The slanting extension extends, and each of the elastic abutting pieces projects into the slot of the mandrel and abuts the inner groove wall of the card slot. The motor rotating member according to claim 9, wherein the fastening member has a fastening hole, and a plurality of elastic abutting pieces are formed inside the fastening hole, and each of the elastic abutting pieces faces away from the hub. The slanting extension extends, and each of the elastic abutting pieces projects into the slot of the mandrel and abuts the inner groove wall of the card slot. The motor rotating member according to claim 10, wherein the fastening member has a fastening hole, and a plurality of elastic abutting pieces are formed inside the fastening hole, and each of the elastic abutting pieces faces away from the hub. The slanting extension extends, and each of the elastic abutting pieces projects into the slot of the mandrel and abuts the inner groove wall of the card slot. The motor rotating member according to the first, second, third, fourth or fifth aspect of the patent application, wherein the fastening member has a fastening groove, and the inner side of the fastening groove forms a plurality of elastic buckles, each of the elastic fastening pieces There is a gap between them, and each of the elastic clasps protrudes into a card slot that is buckled on the mandrel. The motor rotating member according to the first, second, third, fourth or fifth aspect of the patent application, wherein the first opening of the hub forms a receiving groove, and the holding member is located in the receiving groove. Motor rotation according to item 1, 2, 3, 4 or 5 of the patent application scope a piece in which a plurality of blades are formed on the outer circumferential surface of the hub.